Home / 45,711.11-68,527.02-20,391.59

Finding the Fourth Proportional to 45,711.11, 68,527.02 and 20,391.59

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Solution

The fourth proportional to 45,711.11, 68,527.02 and 20,391.59 is: 30,569.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,711.11 : 68,527.02 = 20,391.59 : x
  2. Step 2: Convert to fraction form
    45,711.11/68,527.02 = 20,391.59/x
  3. Step 3: Cross multiply
    45,711.11x = 68,527.02 × 20,391.59
  4. Step 4: Simplify right side
    45,711.11x = 1,397,374,895.76
  5. Step 5: Solve for x
    x = 1,397,374,895.76/45,711.11
  6. Step 6: Final answer
    x = 30,569.70

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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.