Home / 89,980.48-124,169.68-49,143.25

Finding the Fourth Proportional to 89,980.48, 124,169.68 and 49,143.25

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Solution

The fourth proportional to 89,980.48, 124,169.68 and 49,143.25 is: 67,815.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,980.48 : 124,169.68 = 49,143.25 : x
  2. Step 2: Convert to fraction form
    89,980.48/124,169.68 = 49,143.25/x
  3. Step 3: Cross multiply
    89,980.48x = 124,169.68 × 49,143.25
  4. Step 4: Simplify right side
    89,980.48x = 6,102,101,626.66
  5. Step 5: Solve for x
    x = 6,102,101,626.66/89,980.48
  6. Step 6: Final answer
    x = 67,815.84

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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.