Home / 89,454.46-123,439.76-51,205.20

Finding the Fourth Proportional to 89,454.46, 123,439.76 and 51,205.20

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Solution

The fourth proportional to 89,454.46, 123,439.76 and 51,205.20 is: 70,658.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,454.46 : 123,439.76 = 51,205.20 : x
  2. Step 2: Convert to fraction form
    89,454.46/123,439.76 = 51,205.20/x
  3. Step 3: Cross multiply
    89,454.46x = 123,439.76 × 51,205.20
  4. Step 4: Simplify right side
    89,454.46x = 6,320,757,598.75
  5. Step 5: Solve for x
    x = 6,320,757,598.75/89,454.46
  6. Step 6: Final answer
    x = 70,658.94

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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.