Home / 90,281.87-124,587.42-49,994.76

Finding the Fourth Proportional to 90,281.87, 124,587.42 and 49,994.76

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Solution

The fourth proportional to 90,281.87, 124,587.42 and 49,994.76 is: 68,991.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,281.87 : 124,587.42 = 49,994.76 : x
  2. Step 2: Convert to fraction form
    90,281.87/124,587.42 = 49,994.76/x
  3. Step 3: Cross multiply
    90,281.87x = 124,587.42 × 49,994.76
  4. Step 4: Simplify right side
    90,281.87x = 6,228,718,161.92
  5. Step 5: Solve for x
    x = 6,228,718,161.92/90,281.87
  6. Step 6: Final answer
    x = 68,991.91

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.