Home / 90,686.42-136,029.42-24,126.56

Finding the Fourth Proportional to 90,686.42, 136,029.42 and 24,126.56

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Solution

The fourth proportional to 90,686.42, 136,029.42 and 24,126.56 is: 36,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,686.42 : 136,029.42 = 24,126.56 : x
  2. Step 2: Convert to fraction form
    90,686.42/136,029.42 = 24,126.56/x
  3. Step 3: Cross multiply
    90,686.42x = 136,029.42 × 24,126.56
  4. Step 4: Simplify right side
    90,686.42x = 3,281,921,283.25
  5. Step 5: Solve for x
    x = 3,281,921,283.25/90,686.42
  6. Step 6: Final answer
    x = 36,189.78

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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.