Home / 66,917.88-92,347.92-40,061.52

Finding the Fourth Proportional to 66,917.88, 92,347.92 and 40,061.52

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Solution

The fourth proportional to 66,917.88, 92,347.92 and 40,061.52 is: 55,285.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,917.88 : 92,347.92 = 40,061.52 : x
  2. Step 2: Convert to fraction form
    66,917.88/92,347.92 = 40,061.52/x
  3. Step 3: Cross multiply
    66,917.88x = 92,347.92 × 40,061.52
  4. Step 4: Simplify right side
    66,917.88x = 3,699,598,044.04
  5. Step 5: Solve for x
    x = 3,699,598,044.04/66,917.88
  6. Step 6: Final answer
    x = 55,285.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.