Home / 65,127.29-97,689.11-20,756.70

Finding the Fourth Proportional to 65,127.29, 97,689.11 and 20,756.70

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Solution

The fourth proportional to 65,127.29, 97,689.11 and 20,756.70 is: 31,134.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,127.29 : 97,689.11 = 20,756.70 : x
  2. Step 2: Convert to fraction form
    65,127.29/97,689.11 = 20,756.70/x
  3. Step 3: Cross multiply
    65,127.29x = 97,689.11 × 20,756.70
  4. Step 4: Simplify right side
    65,127.29x = 2,027,703,445.75
  5. Step 5: Solve for x
    x = 2,027,703,445.75/65,127.29
  6. Step 6: Final answer
    x = 31,134.47

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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.