Home / 83,500.20-125,031.60-61,192.80

Finding the Fourth Proportional to 83,500.20, 125,031.60 and 61,192.80

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Solution

The fourth proportional to 83,500.20, 125,031.60 and 61,192.80 is: 91,628.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,500.20 : 125,031.60 = 61,192.80 : x
  2. Step 2: Convert to fraction form
    83,500.20/125,031.60 = 61,192.80/x
  3. Step 3: Cross multiply
    83,500.20x = 125,031.60 × 61,192.80
  4. Step 4: Simplify right side
    83,500.20x = 7,651,033,692.48
  5. Step 5: Solve for x
    x = 7,651,033,692.48/83,500.20
  6. Step 6: Final answer
    x = 91,628.93

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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.