Home / 71,114.52-98,136.18-39,278.28

Finding the Fourth Proportional to 71,114.52, 98,136.18 and 39,278.28

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Solution

The fourth proportional to 71,114.52, 98,136.18 and 39,278.28 is: 54,203.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,114.52 : 98,136.18 = 39,278.28 : x
  2. Step 2: Convert to fraction form
    71,114.52/98,136.18 = 39,278.28/x
  3. Step 3: Cross multiply
    71,114.52x = 98,136.18 × 39,278.28
  4. Step 4: Simplify right side
    71,114.52x = 3,854,620,356.17
  5. Step 5: Solve for x
    x = 3,854,620,356.17/71,114.52
  6. Step 6: Final answer
    x = 54,203.00

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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.