Home / 89,445.92-123,432.76-51,204.20

Finding the Fourth Proportional to 89,445.92, 123,432.76 and 51,204.20

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Solution

The fourth proportional to 89,445.92, 123,432.76 and 51,204.20 is: 70,660.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,445.92 : 123,432.76 = 51,204.20 : x
  2. Step 2: Convert to fraction form
    89,445.92/123,432.76 = 51,204.20/x
  3. Step 3: Cross multiply
    89,445.92x = 123,432.76 × 51,204.20
  4. Step 4: Simplify right side
    89,445.92x = 6,320,275,870.74
  5. Step 5: Solve for x
    x = 6,320,275,870.74/89,445.92
  6. Step 6: Final answer
    x = 70,660.30

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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.