Home / 57,432.61-86,142.08-15,315.85

Finding the Fourth Proportional to 57,432.61, 86,142.08 and 15,315.85

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Solution

The fourth proportional to 57,432.61, 86,142.08 and 15,315.85 is: 22,971.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,432.61 : 86,142.08 = 15,315.85 : x
  2. Step 2: Convert to fraction form
    57,432.61/86,142.08 = 15,315.85/x
  3. Step 3: Cross multiply
    57,432.61x = 86,142.08 × 15,315.85
  4. Step 4: Simplify right side
    57,432.61x = 1,319,339,099.39
  5. Step 5: Solve for x
    x = 1,319,339,099.39/57,432.61
  6. Step 6: Final answer
    x = 22,971.95

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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.