Home / 71,345.60-98,457.59-39,515.13

Finding the Fourth Proportional to 71,345.60, 98,457.59 and 39,515.13

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Solution

The fourth proportional to 71,345.60, 98,457.59 and 39,515.13 is: 54,531.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,345.60 : 98,457.59 = 39,515.13 : x
  2. Step 2: Convert to fraction form
    71,345.60/98,457.59 = 39,515.13/x
  3. Step 3: Cross multiply
    71,345.60x = 98,457.59 × 39,515.13
  4. Step 4: Simplify right side
    71,345.60x = 3,890,564,468.34
  5. Step 5: Solve for x
    x = 3,890,564,468.34/71,345.60
  6. Step 6: Final answer
    x = 54,531.25

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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.