Home / 71,329.11-98,426.19-39,490.02

Finding the Fourth Proportional to 71,329.11, 98,426.19 and 39,490.02

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Solution

The fourth proportional to 71,329.11, 98,426.19 and 39,490.02 is: 54,491.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,329.11 : 98,426.19 = 39,490.02 : x
  2. Step 2: Convert to fraction form
    71,329.11/98,426.19 = 39,490.02/x
  3. Step 3: Cross multiply
    71,329.11x = 98,426.19 × 39,490.02
  4. Step 4: Simplify right side
    71,329.11x = 3,886,852,211.62
  5. Step 5: Solve for x
    x = 3,886,852,211.62/71,329.11
  6. Step 6: Final answer
    x = 54,491.81

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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.