Home / 91,728.96-137,547.84-29,391.36

Finding the Fourth Proportional to 91,728.96, 137,547.84 and 29,391.36

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Solution

The fourth proportional to 91,728.96, 137,547.84 and 29,391.36 is: 44,072.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,728.96 : 137,547.84 = 29,391.36 : x
  2. Step 2: Convert to fraction form
    91,728.96/137,547.84 = 29,391.36/x
  3. Step 3: Cross multiply
    91,728.96x = 137,547.84 × 29,391.36
  4. Step 4: Simplify right side
    91,728.96x = 4,042,718,082.66
  5. Step 5: Solve for x
    x = 4,042,718,082.66/91,728.96
  6. Step 6: Final answer
    x = 44,072.43

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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.