Home / 89,644.13-123,708.89-49,900.13

Finding the Fourth Proportional to 89,644.13, 123,708.89 and 49,900.13

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Solution

The fourth proportional to 89,644.13, 123,708.89 and 49,900.13 is: 68,862.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,644.13 : 123,708.89 = 49,900.13 : x
  2. Step 2: Convert to fraction form
    89,644.13/123,708.89 = 49,900.13/x
  3. Step 3: Cross multiply
    89,644.13x = 123,708.89 × 49,900.13
  4. Step 4: Simplify right side
    89,644.13x = 6,173,089,693.16
  5. Step 5: Solve for x
    x = 6,173,089,693.16/89,644.13
  6. Step 6: Final answer
    x = 68,862.17

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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.