Home / 88,141.14-121,645.89-54,612.18

Finding the Fourth Proportional to 88,141.14, 121,645.89 and 54,612.18

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Solution

The fourth proportional to 88,141.14, 121,645.89 and 54,612.18 is: 75,371.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,141.14 : 121,645.89 = 54,612.18 : x
  2. Step 2: Convert to fraction form
    88,141.14/121,645.89 = 54,612.18/x
  3. Step 3: Cross multiply
    88,141.14x = 121,645.89 × 54,612.18
  4. Step 4: Simplify right side
    88,141.14x = 6,643,347,240.94
  5. Step 5: Solve for x
    x = 6,643,347,240.94/88,141.14
  6. Step 6: Final answer
    x = 75,371.70

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1.5x scale

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.