Home / 87,752.96-121,010.64-66,295.52

Finding the Fourth Proportional to 87,752.96, 121,010.64 and 66,295.52

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Solution

The fourth proportional to 87,752.96, 121,010.64 and 66,295.52 is: 91,421.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,752.96 : 121,010.64 = 66,295.52 : x
  2. Step 2: Convert to fraction form
    87,752.96/121,010.64 = 66,295.52/x
  3. Step 3: Cross multiply
    87,752.96x = 121,010.64 × 66,295.52
  4. Step 4: Simplify right side
    87,752.96x = 8,022,463,304.33
  5. Step 5: Solve for x
    x = 8,022,463,304.33/87,752.96
  6. Step 6: Final answer
    x = 91,421.00

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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.