Home / 66,132.34-99,197.80-26,688.78

Finding the Fourth Proportional to 66,132.34, 99,197.80 and 26,688.78

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Solution

The fourth proportional to 66,132.34, 99,197.80 and 26,688.78 is: 40,032.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,132.34 : 99,197.80 = 26,688.78 : x
  2. Step 2: Convert to fraction form
    66,132.34/99,197.80 = 26,688.78/x
  3. Step 3: Cross multiply
    66,132.34x = 99,197.80 × 26,688.78
  4. Step 4: Simplify right side
    66,132.34x = 2,647,468,193.96
  5. Step 5: Solve for x
    x = 2,647,468,193.96/66,132.34
  6. Step 6: Final answer
    x = 40,032.88

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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.