Home / 89,709.75-123,805.13-49,423.59

Finding the Fourth Proportional to 89,709.75, 123,805.13 and 49,423.59

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Solution

The fourth proportional to 89,709.75, 123,805.13 and 49,423.59 is: 68,207.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,709.75 : 123,805.13 = 49,423.59 : x
  2. Step 2: Convert to fraction form
    89,709.75/123,805.13 = 49,423.59/x
  3. Step 3: Cross multiply
    89,709.75x = 123,805.13 × 49,423.59
  4. Step 4: Simplify right side
    89,709.75x = 6,118,893,737.90
  5. Step 5: Solve for x
    x = 6,118,893,737.90/89,709.75
  6. Step 6: Final answer
    x = 68,207.68

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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.