Home / 89,955.28-124,127.40-49,665.88

Finding the Fourth Proportional to 89,955.28, 124,127.40 and 49,665.88

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Solution

The fourth proportional to 89,955.28, 124,127.40 and 49,665.88 is: 68,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,955.28 : 124,127.40 = 49,665.88 : x
  2. Step 2: Convert to fraction form
    89,955.28/124,127.40 = 49,665.88/x
  3. Step 3: Cross multiply
    89,955.28x = 124,127.40 × 49,665.88
  4. Step 4: Simplify right side
    89,955.28x = 6,164,896,553.11
  5. Step 5: Solve for x
    x = 6,164,896,553.11/89,955.28
  6. Step 6: Final answer
    x = 68,532.90

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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.