Home / 89,763.98-123,875.12-49,479.29

Finding the Fourth Proportional to 89,763.98, 123,875.12 and 49,479.29

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Solution

The fourth proportional to 89,763.98, 123,875.12 and 49,479.29 is: 68,281.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,763.98 : 123,875.12 = 49,479.29 : x
  2. Step 2: Convert to fraction form
    89,763.98/123,875.12 = 49,479.29/x
  3. Step 3: Cross multiply
    89,763.98x = 123,875.12 × 49,479.29
  4. Step 4: Simplify right side
    89,763.98x = 6,129,252,119.49
  5. Step 5: Solve for x
    x = 6,129,252,119.49/89,763.98
  6. Step 6: Final answer
    x = 68,281.87

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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.