Home / 84,496.92-126,711.36-31,877.76

Finding the Fourth Proportional to 84,496.92, 126,711.36 and 31,877.76

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Solution

The fourth proportional to 84,496.92, 126,711.36 and 31,877.76 is: 47,803.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,496.92 : 126,711.36 = 31,877.76 : x
  2. Step 2: Convert to fraction form
    84,496.92/126,711.36 = 31,877.76/x
  3. Step 3: Cross multiply
    84,496.92x = 126,711.36 × 31,877.76
  4. Step 4: Simplify right side
    84,496.92x = 4,039,274,323.35
  5. Step 5: Solve for x
    x = 4,039,274,323.35/84,496.92
  6. Step 6: Final answer
    x = 47,803.81

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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.