Home / 88,132.91-121,642.61-54,159.23

Finding the Fourth Proportional to 88,132.91, 121,642.61 and 54,159.23

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Solution

The fourth proportional to 88,132.91, 121,642.61 and 54,159.23 is: 74,751.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,132.91 : 121,642.61 = 54,159.23 : x
  2. Step 2: Convert to fraction form
    88,132.91/121,642.61 = 54,159.23/x
  3. Step 3: Cross multiply
    88,132.91x = 121,642.61 × 54,159.23
  4. Step 4: Simplify right side
    88,132.91x = 6,588,069,213.78
  5. Step 5: Solve for x
    x = 6,588,069,213.78/88,132.91
  6. Step 6: Final answer
    x = 74,751.53

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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.