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Finding the Fourth Proportional to 63,479.70, 95,219.55 and 40,209.30

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Solution

The fourth proportional to 63,479.70, 95,219.55 and 40,209.30 is: 60,313.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,479.70 : 95,219.55 = 40,209.30 : x
  2. Step 2: Convert to fraction form
    63,479.70/95,219.55 = 40,209.30/x
  3. Step 3: Cross multiply
    63,479.70x = 95,219.55 × 40,209.30
  4. Step 4: Simplify right side
    63,479.70x = 3,828,711,451.82
  5. Step 5: Solve for x
    x = 3,828,711,451.82/63,479.70
  6. Step 6: Final answer
    x = 60,313.95

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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.