Home / 80,901.48-121,339.26-25,493.16

Finding the Fourth Proportional to 80,901.48, 121,339.26 and 25,493.16

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Solution

The fourth proportional to 80,901.48, 121,339.26 and 25,493.16 is: 38,235.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,901.48 : 121,339.26 = 25,493.16 : x
  2. Step 2: Convert to fraction form
    80,901.48/121,339.26 = 25,493.16/x
  3. Step 3: Cross multiply
    80,901.48x = 121,339.26 × 25,493.16
  4. Step 4: Simplify right side
    80,901.48x = 3,093,321,169.46
  5. Step 5: Solve for x
    x = 3,093,321,169.46/80,901.48
  6. Step 6: Final answer
    x = 38,235.66

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1.5x scale

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.