Home / 62,387.58-86,070.38-38,472.78

Finding the Fourth Proportional to 62,387.58, 86,070.38 and 38,472.78

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Solution

The fourth proportional to 62,387.58, 86,070.38 and 38,472.78 is: 53,077.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,387.58 : 86,070.38 = 38,472.78 : x
  2. Step 2: Convert to fraction form
    62,387.58/86,070.38 = 38,472.78/x
  3. Step 3: Cross multiply
    62,387.58x = 86,070.38 × 38,472.78
  4. Step 4: Simplify right side
    62,387.58x = 3,311,366,794.26
  5. Step 5: Solve for x
    x = 3,311,366,794.26/62,387.58
  6. Step 6: Final answer
    x = 53,077.34

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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.