Home / 83,712.42-125,565.98-20,532.74

Finding the Fourth Proportional to 83,712.42, 125,565.98 and 20,532.74

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Solution

The fourth proportional to 83,712.42, 125,565.98 and 20,532.74 is: 30,798.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,712.42 : 125,565.98 = 20,532.74 : x
  2. Step 2: Convert to fraction form
    83,712.42/125,565.98 = 20,532.74/x
  3. Step 3: Cross multiply
    83,712.42x = 125,565.98 × 20,532.74
  4. Step 4: Simplify right side
    83,712.42x = 2,578,213,620.19
  5. Step 5: Solve for x
    x = 2,578,213,620.19/83,712.42
  6. Step 6: Final answer
    x = 30,798.46

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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.