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Finding the Fourth Proportional to 84,432.86, 126,649.44 and 34,512.92

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Solution

The fourth proportional to 84,432.86, 126,649.44 and 34,512.92 is: 51,769.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,432.86 : 126,649.44 = 34,512.92 : x
  2. Step 2: Convert to fraction form
    84,432.86/126,649.44 = 34,512.92/x
  3. Step 3: Cross multiply
    84,432.86x = 126,649.44 × 34,512.92
  4. Step 4: Simplify right side
    84,432.86x = 4,371,041,357.52
  5. Step 5: Solve for x
    x = 4,371,041,357.52/84,432.86
  6. Step 6: Final answer
    x = 51,769.43

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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.