Home / 78,250.86-117,294.33-36,158.55

Finding the Fourth Proportional to 78,250.86, 117,294.33 and 36,158.55

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Solution

The fourth proportional to 78,250.86, 117,294.33 and 36,158.55 is: 54,199.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,250.86 : 117,294.33 = 36,158.55 : x
  2. Step 2: Convert to fraction form
    78,250.86/117,294.33 = 36,158.55/x
  3. Step 3: Cross multiply
    78,250.86x = 117,294.33 × 36,158.55
  4. Step 4: Simplify right side
    78,250.86x = 4,241,192,896.02
  5. Step 5: Solve for x
    x = 4,241,192,896.02/78,250.86
  6. Step 6: Final answer
    x = 54,199.95

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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.