Home / 91,915.17-137,833.57-34,979.36

Finding the Fourth Proportional to 91,915.17, 137,833.57 and 34,979.36

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Solution

The fourth proportional to 91,915.17, 137,833.57 and 34,979.36 is: 52,454.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,915.17 : 137,833.57 = 34,979.36 : x
  2. Step 2: Convert to fraction form
    91,915.17/137,833.57 = 34,979.36/x
  3. Step 3: Cross multiply
    91,915.17x = 137,833.57 × 34,979.36
  4. Step 4: Simplify right side
    91,915.17x = 4,821,330,065.12
  5. Step 5: Solve for x
    x = 4,821,330,065.12/91,915.17
  6. Step 6: Final answer
    x = 52,454.13

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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.