Home / 89,789.28-134,716.14-38,476.40

Finding the Fourth Proportional to 89,789.28, 134,716.14 and 38,476.40

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Solution

The fourth proportional to 89,789.28, 134,716.14 and 38,476.40 is: 57,728.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,789.28 : 134,716.14 = 38,476.40 : x
  2. Step 2: Convert to fraction form
    89,789.28/134,716.14 = 38,476.40/x
  3. Step 3: Cross multiply
    89,789.28x = 134,716.14 × 38,476.40
  4. Step 4: Simplify right side
    89,789.28x = 5,183,392,089.10
  5. Step 5: Solve for x
    x = 5,183,392,089.10/89,789.28
  6. Step 6: Final answer
    x = 57,728.41

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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.