Home / 66,418.52-99,649.32-39,760.36

Finding the Fourth Proportional to 66,418.52, 99,649.32 and 39,760.36

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Solution

The fourth proportional to 66,418.52, 99,649.32 and 39,760.36 is: 59,653.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,418.52 : 99,649.32 = 39,760.36 : x
  2. Step 2: Convert to fraction form
    66,418.52/99,649.32 = 39,760.36/x
  3. Step 3: Cross multiply
    66,418.52x = 99,649.32 × 39,760.36
  4. Step 4: Simplify right side
    66,418.52x = 3,962,092,587.83
  5. Step 5: Solve for x
    x = 3,962,092,587.83/66,418.52
  6. Step 6: Final answer
    x = 59,653.43

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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.