Home / 57,419.76-86,146.92-17,981.04

Finding the Fourth Proportional to 57,419.76, 86,146.92 and 17,981.04

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Solution

The fourth proportional to 57,419.76, 86,146.92 and 17,981.04 is: 26,976.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,419.76 : 86,146.92 = 17,981.04 : x
  2. Step 2: Convert to fraction form
    57,419.76/86,146.92 = 17,981.04/x
  3. Step 3: Cross multiply
    57,419.76x = 86,146.92 × 17,981.04
  4. Step 4: Simplify right side
    57,419.76x = 1,549,011,214.40
  5. Step 5: Solve for x
    x = 1,549,011,214.40/57,419.76
  6. Step 6: Final answer
    x = 26,976.97

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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.