Home / 78,747.18-118,120.77-32,003.70

Finding the Fourth Proportional to 78,747.18, 118,120.77 and 32,003.70

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Solution

The fourth proportional to 78,747.18, 118,120.77 and 32,003.70 is: 48,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,747.18 : 118,120.77 = 32,003.70 : x
  2. Step 2: Convert to fraction form
    78,747.18/118,120.77 = 32,003.70/x
  3. Step 3: Cross multiply
    78,747.18x = 118,120.77 × 32,003.70
  4. Step 4: Simplify right side
    78,747.18x = 3,780,301,686.85
  5. Step 5: Solve for x
    x = 3,780,301,686.85/78,747.18
  6. Step 6: Final answer
    x = 48,005.55

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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.