Home / 83,909.04-125,824.68-31,280.64

Finding the Fourth Proportional to 83,909.04, 125,824.68 and 31,280.64

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Solution

The fourth proportional to 83,909.04, 125,824.68 and 31,280.64 is: 46,906.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,909.04 : 125,824.68 = 31,280.64 : x
  2. Step 2: Convert to fraction form
    83,909.04/125,824.68 = 31,280.64/x
  3. Step 3: Cross multiply
    83,909.04x = 125,824.68 × 31,280.64
  4. Step 4: Simplify right side
    83,909.04x = 3,935,876,518.20
  5. Step 5: Solve for x
    x = 3,935,876,518.20/83,909.04
  6. Step 6: Final answer
    x = 46,906.47

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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.