Home / 97,221.28-134,164.20-54,787

Finding the Fourth Proportional to 97,221.28, 134,164.20 and 54,787

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Solution

The fourth proportional to 97,221.28, 134,164.20 and 54,787 is: 75,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,221.28 : 134,164.20 = 54,787 : x
  2. Step 2: Convert to fraction form
    97,221.28/134,164.20 = 54,787/x
  3. Step 3: Cross multiply
    97,221.28x = 134,164.20 × 54,787
  4. Step 4: Simplify right side
    97,221.28x = 7,350,454,025.40
  5. Step 5: Solve for x
    x = 7,350,454,025.40/97,221.28
  6. Step 6: Final answer
    x = 75,605.40

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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.