Home / 89,285.28-123,215.21-49,002.79

Finding the Fourth Proportional to 89,285.28, 123,215.21 and 49,002.79

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Solution

The fourth proportional to 89,285.28, 123,215.21 and 49,002.79 is: 67,624.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,285.28 : 123,215.21 = 49,002.79 : x
  2. Step 2: Convert to fraction form
    89,285.28/123,215.21 = 49,002.79/x
  3. Step 3: Cross multiply
    89,285.28x = 123,215.21 × 49,002.79
  4. Step 4: Simplify right side
    89,285.28x = 6,037,889,060.44
  5. Step 5: Solve for x
    x = 6,037,889,060.44/89,285.28
  6. Step 6: Final answer
    x = 67,624.69

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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.