Home / 71,325.23-98,428.80-39,494.12

Finding the Fourth Proportional to 71,325.23, 98,428.80 and 39,494.12

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Solution

The fourth proportional to 71,325.23, 98,428.80 and 39,494.12 is: 54,501.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,325.23 : 98,428.80 = 39,494.12 : x
  2. Step 2: Convert to fraction form
    71,325.23/98,428.80 = 39,494.12/x
  3. Step 3: Cross multiply
    71,325.23x = 98,428.80 × 39,494.12
  4. Step 4: Simplify right side
    71,325.23x = 3,887,358,838.66
  5. Step 5: Solve for x
    x = 3,887,358,838.66/71,325.23
  6. Step 6: Final answer
    x = 54,501.88

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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.