Home / 83,655.25-125,428.38-30,337.29

Finding the Fourth Proportional to 83,655.25, 125,428.38 and 30,337.29

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Solution

The fourth proportional to 83,655.25, 125,428.38 and 30,337.29 is: 45,486.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,655.25 : 125,428.38 = 30,337.29 : x
  2. Step 2: Convert to fraction form
    83,655.25/125,428.38 = 30,337.29/x
  3. Step 3: Cross multiply
    83,655.25x = 125,428.38 × 30,337.29
  4. Step 4: Simplify right side
    83,655.25x = 3,805,156,971.33
  5. Step 5: Solve for x
    x = 3,805,156,971.33/83,655.25
  6. Step 6: Final answer
    x = 45,486.17

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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.