Home / 71,325.56-98,428.07-39,493.78

Finding the Fourth Proportional to 71,325.56, 98,428.07 and 39,493.78

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Solution

The fourth proportional to 71,325.56, 98,428.07 and 39,493.78 is: 54,500.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,325.56 : 98,428.07 = 39,493.78 : x
  2. Step 2: Convert to fraction form
    71,325.56/98,428.07 = 39,493.78/x
  3. Step 3: Cross multiply
    71,325.56x = 98,428.07 × 39,493.78
  4. Step 4: Simplify right side
    71,325.56x = 3,887,296,542.40
  5. Step 5: Solve for x
    x = 3,887,296,542.40/71,325.56
  6. Step 6: Final answer
    x = 54,500.75

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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.