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Finding the Fourth Proportional to 83,908.40, 125,862.60 and 50,730.80

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Solution

The fourth proportional to 83,908.40, 125,862.60 and 50,730.80 is: 76,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,908.40 : 125,862.60 = 50,730.80 : x
  2. Step 2: Convert to fraction form
    83,908.40/125,862.60 = 50,730.80/x
  3. Step 3: Cross multiply
    83,908.40x = 125,862.60 × 50,730.80
  4. Step 4: Simplify right side
    83,908.40x = 6,385,110,388.08
  5. Step 5: Solve for x
    x = 6,385,110,388.08/83,908.40
  6. Step 6: Final answer
    x = 76,096.20

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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.