Home / 81,414.26-112,355.14-47,417.28

Finding the Fourth Proportional to 81,414.26, 112,355.14 and 47,417.28

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Solution

The fourth proportional to 81,414.26, 112,355.14 and 47,417.28 is: 65,437.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,414.26 : 112,355.14 = 47,417.28 : x
  2. Step 2: Convert to fraction form
    81,414.26/112,355.14 = 47,417.28/x
  3. Step 3: Cross multiply
    81,414.26x = 112,355.14 × 47,417.28
  4. Step 4: Simplify right side
    81,414.26x = 5,327,575,132.82
  5. Step 5: Solve for x
    x = 5,327,575,132.82/81,414.26
  6. Step 6: Final answer
    x = 65,437.86

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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.