Home / 89,432.02-123,419.06-49,149.51

Finding the Fourth Proportional to 89,432.02, 123,419.06 and 49,149.51

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Solution

The fourth proportional to 89,432.02, 123,419.06 and 49,149.51 is: 67,827.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,432.02 : 123,419.06 = 49,149.51 : x
  2. Step 2: Convert to fraction form
    89,432.02/123,419.06 = 49,149.51/x
  3. Step 3: Cross multiply
    89,432.02x = 123,419.06 × 49,149.51
  4. Step 4: Simplify right side
    89,432.02x = 6,065,986,323.66
  5. Step 5: Solve for x
    x = 6,065,986,323.66/89,432.02
  6. Step 6: Final answer
    x = 67,827.90

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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.