Home / 65,107.20-97,666.20-20,732.70

Finding the Fourth Proportional to 65,107.20, 97,666.20 and 20,732.70

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Solution

The fourth proportional to 65,107.20, 97,666.20 and 20,732.70 is: 31,100.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,107.20 : 97,666.20 = 20,732.70 : x
  2. Step 2: Convert to fraction form
    65,107.20/97,666.20 = 20,732.70/x
  3. Step 3: Cross multiply
    65,107.20x = 97,666.20 × 20,732.70
  4. Step 4: Simplify right side
    65,107.20x = 2,024,884,024.74
  5. Step 5: Solve for x
    x = 2,024,884,024.74/65,107.20
  6. Step 6: Final answer
    x = 31,100.77

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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.