Home / 66,144.62-99,658.19-59,826.78

Finding the Fourth Proportional to 66,144.62, 99,658.19 and 59,826.78

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Solution

The fourth proportional to 66,144.62, 99,658.19 and 59,826.78 is: 90,139.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,144.62 : 99,658.19 = 59,826.78 : x
  2. Step 2: Convert to fraction form
    66,144.62/99,658.19 = 59,826.78/x
  3. Step 3: Cross multiply
    66,144.62x = 99,658.19 × 59,826.78
  4. Step 4: Simplify right side
    66,144.62x = 5,962,228,309.19
  5. Step 5: Solve for x
    x = 5,962,228,309.19/66,144.62
  6. Step 6: Final answer
    x = 90,139.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.