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Finding the Fourth Proportional to 83,311.70, 124,967.55 and 63,628.70

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Solution

The fourth proportional to 83,311.70, 124,967.55 and 63,628.70 is: 95,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,311.70 : 124,967.55 = 63,628.70 : x
  2. Step 2: Convert to fraction form
    83,311.70/124,967.55 = 63,628.70/x
  3. Step 3: Cross multiply
    83,311.70x = 124,967.55 × 63,628.70
  4. Step 4: Simplify right side
    83,311.70x = 7,951,522,748.69
  5. Step 5: Solve for x
    x = 7,951,522,748.69/83,311.70
  6. Step 6: Final answer
    x = 95,443.05

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1.5x scale

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.