Home / 88,139.38-132,077.78-48,707.76

Finding the Fourth Proportional to 88,139.38, 132,077.78 and 48,707.76

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Solution

The fourth proportional to 88,139.38, 132,077.78 and 48,707.76 is: 72,989.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,139.38 : 132,077.78 = 48,707.76 : x
  2. Step 2: Convert to fraction form
    88,139.38/132,077.78 = 48,707.76/x
  3. Step 3: Cross multiply
    88,139.38x = 132,077.78 × 48,707.76
  4. Step 4: Simplify right side
    88,139.38x = 6,433,212,809.57
  5. Step 5: Solve for x
    x = 6,433,212,809.57/88,139.38
  6. Step 6: Final answer
    x = 72,989.09

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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.