Home / 88,182.54-121,711.10-54,220.14

Finding the Fourth Proportional to 88,182.54, 121,711.10 and 54,220.14

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Solution

The fourth proportional to 88,182.54, 121,711.10 and 54,220.14 is: 74,835.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,182.54 : 121,711.10 = 54,220.14 : x
  2. Step 2: Convert to fraction form
    88,182.54/121,711.10 = 54,220.14/x
  3. Step 3: Cross multiply
    88,182.54x = 121,711.10 × 54,220.14
  4. Step 4: Simplify right side
    88,182.54x = 6,599,192,610.45
  5. Step 5: Solve for x
    x = 6,599,192,610.45/88,182.54
  6. Step 6: Final answer
    x = 74,835.59

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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.