Home / 91,497.28-137,268.12-29,167.72

Finding the Fourth Proportional to 91,497.28, 137,268.12 and 29,167.72

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Solution

The fourth proportional to 91,497.28, 137,268.12 and 29,167.72 is: 43,758.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,497.28 : 137,268.12 = 29,167.72 : x
  2. Step 2: Convert to fraction form
    91,497.28/137,268.12 = 29,167.72/x
  3. Step 3: Cross multiply
    91,497.28x = 137,268.12 × 29,167.72
  4. Step 4: Simplify right side
    91,497.28x = 4,003,798,089.09
  5. Step 5: Solve for x
    x = 4,003,798,089.09/91,497.28
  6. Step 6: Final answer
    x = 43,758.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.