Home / 65,121.30-97,689.27-20,737.38

Finding the Fourth Proportional to 65,121.30, 97,689.27 and 20,737.38

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Solution

The fourth proportional to 65,121.30, 97,689.27 and 20,737.38 is: 31,108.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,121.30 : 97,689.27 = 20,737.38 : x
  2. Step 2: Convert to fraction form
    65,121.30/97,689.27 = 20,737.38/x
  3. Step 3: Cross multiply
    65,121.30x = 97,689.27 × 20,737.38
  4. Step 4: Simplify right side
    65,121.30x = 2,025,819,513.91
  5. Step 5: Solve for x
    x = 2,025,819,513.91/65,121.30
  6. Step 6: Final answer
    x = 31,108.40

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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.