Home / 78,932.18-118,398.27-32,188.70

Finding the Fourth Proportional to 78,932.18, 118,398.27 and 32,188.70

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Solution

The fourth proportional to 78,932.18, 118,398.27 and 32,188.70 is: 48,283.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,932.18 : 118,398.27 = 32,188.70 : x
  2. Step 2: Convert to fraction form
    78,932.18/118,398.27 = 32,188.70/x
  3. Step 3: Cross multiply
    78,932.18x = 118,398.27 × 32,188.70
  4. Step 4: Simplify right side
    78,932.18x = 3,811,086,393.55
  5. Step 5: Solve for x
    x = 3,811,086,393.55/78,932.18
  6. Step 6: Final answer
    x = 48,283.05

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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.