Home / 83,500.20-125,250.30-55,603.80

Finding the Fourth Proportional to 83,500.20, 125,250.30 and 55,603.80

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Solution

The fourth proportional to 83,500.20, 125,250.30 and 55,603.80 is: 83,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,500.20 : 125,250.30 = 55,603.80 : x
  2. Step 2: Convert to fraction form
    83,500.20/125,250.30 = 55,603.80/x
  3. Step 3: Cross multiply
    83,500.20x = 125,250.30 × 55,603.80
  4. Step 4: Simplify right side
    83,500.20x = 6,964,392,631.14
  5. Step 5: Solve for x
    x = 6,964,392,631.14/83,500.20
  6. Step 6: Final answer
    x = 83,405.70

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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.