Home / 83,875.28-125,890.68-42,351.44

Finding the Fourth Proportional to 83,875.28, 125,890.68 and 42,351.44

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Solution

The fourth proportional to 83,875.28, 125,890.68 and 42,351.44 is: 63,566.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,875.28 : 125,890.68 = 42,351.44 : x
  2. Step 2: Convert to fraction form
    83,875.28/125,890.68 = 42,351.44/x
  3. Step 3: Cross multiply
    83,875.28x = 125,890.68 × 42,351.44
  4. Step 4: Simplify right side
    83,875.28x = 5,331,651,580.58
  5. Step 5: Solve for x
    x = 5,331,651,580.58/83,875.28
  6. Step 6: Final answer
    x = 63,566.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.