Home / 90,278.16-124,583.80-49,991.92

Finding the Fourth Proportional to 90,278.16, 124,583.80 and 49,991.92

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Solution

The fourth proportional to 90,278.16, 124,583.80 and 49,991.92 is: 68,988.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,278.16 : 124,583.80 = 49,991.92 : x
  2. Step 2: Convert to fraction form
    90,278.16/124,583.80 = 49,991.92/x
  3. Step 3: Cross multiply
    90,278.16x = 124,583.80 × 49,991.92
  4. Step 4: Simplify right side
    90,278.16x = 6,228,183,362.90
  5. Step 5: Solve for x
    x = 6,228,183,362.90/90,278.16
  6. Step 6: Final answer
    x = 68,988.82

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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.