Home / 89,686.12-123,767.68-49,400.04

Finding the Fourth Proportional to 89,686.12, 123,767.68 and 49,400.04

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Solution

The fourth proportional to 89,686.12, 123,767.68 and 49,400.04 is: 68,172.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,686.12 : 123,767.68 = 49,400.04 : x
  2. Step 2: Convert to fraction form
    89,686.12/123,767.68 = 49,400.04/x
  3. Step 3: Cross multiply
    89,686.12x = 123,767.68 × 49,400.04
  4. Step 4: Simplify right side
    89,686.12x = 6,114,128,342.71
  5. Step 5: Solve for x
    x = 6,114,128,342.71/89,686.12
  6. Step 6: Final answer
    x = 68,172.51

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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.