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Finding the Fourth Proportional to 60,167.80, 90,251.70 and 30,643.30

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Solution

The fourth proportional to 60,167.80, 90,251.70 and 30,643.30 is: 45,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,167.80 : 90,251.70 = 30,643.30 : x
  2. Step 2: Convert to fraction form
    60,167.80/90,251.70 = 30,643.30/x
  3. Step 3: Cross multiply
    60,167.80x = 90,251.70 × 30,643.30
  4. Step 4: Simplify right side
    60,167.80x = 2,765,609,918.61
  5. Step 5: Solve for x
    x = 2,765,609,918.61/60,167.80
  6. Step 6: Final answer
    x = 45,964.95

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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.