Home / 88,081.20-132,121.80-56,588.40

Finding the Fourth Proportional to 88,081.20, 132,121.80 and 56,588.40

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Solution

The fourth proportional to 88,081.20, 132,121.80 and 56,588.40 is: 84,882.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,081.20 : 132,121.80 = 56,588.40 : x
  2. Step 2: Convert to fraction form
    88,081.20/132,121.80 = 56,588.40/x
  3. Step 3: Cross multiply
    88,081.20x = 132,121.80 × 56,588.40
  4. Step 4: Simplify right side
    88,081.20x = 7,476,561,267.12
  5. Step 5: Solve for x
    x = 7,476,561,267.12/88,081.20
  6. Step 6: Final answer
    x = 84,882.60

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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.