Home / 83,630.20-115,505.46-55,077.50

Finding the Fourth Proportional to 83,630.20, 115,505.46 and 55,077.50

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Solution

The fourth proportional to 83,630.20, 115,505.46 and 55,077.50 is: 76,070.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,630.20 : 115,505.46 = 55,077.50 : x
  2. Step 2: Convert to fraction form
    83,630.20/115,505.46 = 55,077.50/x
  3. Step 3: Cross multiply
    83,630.20x = 115,505.46 × 55,077.50
  4. Step 4: Simplify right side
    83,630.20x = 6,361,751,257.93
  5. Step 5: Solve for x
    x = 6,361,751,257.93/83,630.20
  6. Step 6: Final answer
    x = 76,070.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.