Home / 83,941.60-125,912.40-47,000.80

Finding the Fourth Proportional to 83,941.60, 125,912.40 and 47,000.80

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Solution

The fourth proportional to 83,941.60, 125,912.40 and 47,000.80 is: 70,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,941.60 : 125,912.40 = 47,000.80 : x
  2. Step 2: Convert to fraction form
    83,941.60/125,912.40 = 47,000.80/x
  3. Step 3: Cross multiply
    83,941.60x = 125,912.40 × 47,000.80
  4. Step 4: Simplify right side
    83,941.60x = 5,917,983,529.92
  5. Step 5: Solve for x
    x = 5,917,983,529.92/83,941.60
  6. Step 6: Final answer
    x = 70,501.20

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Similar ratio
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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.