Home / 88,021.70-132,032.55-77,999.30

Finding the Fourth Proportional to 88,021.70, 132,032.55 and 77,999.30

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Solution

The fourth proportional to 88,021.70, 132,032.55 and 77,999.30 is: 116,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,021.70 : 132,032.55 = 77,999.30 : x
  2. Step 2: Convert to fraction form
    88,021.70/132,032.55 = 77,999.30/x
  3. Step 3: Cross multiply
    88,021.70x = 132,032.55 × 77,999.30
  4. Step 4: Simplify right side
    88,021.70x = 10,298,446,477.22
  5. Step 5: Solve for x
    x = 10,298,446,477.22/88,021.70
  6. Step 6: Final answer
    x = 116,998.95

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Similar ratio
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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.