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Finding the Fourth Proportional to 45,117.66, 67,687.42 and 13,527.66

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Solution

The fourth proportional to 45,117.66, 67,687.42 and 13,527.66 is: 20,294.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,117.66 : 67,687.42 = 13,527.66 : x
  2. Step 2: Convert to fraction form
    45,117.66/67,687.42 = 13,527.66/x
  3. Step 3: Cross multiply
    45,117.66x = 67,687.42 × 13,527.66
  4. Step 4: Simplify right side
    45,117.66x = 915,652,404.04
  5. Step 5: Solve for x
    x = 915,652,404.04/45,117.66
  6. Step 6: Final answer
    x = 20,294.77

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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.