Home / 88,120.72-121,606.92-47,834.56

Finding the Fourth Proportional to 88,120.72, 121,606.92 and 47,834.56

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Solution

The fourth proportional to 88,120.72, 121,606.92 and 47,834.56 is: 66,011.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,120.72 : 121,606.92 = 47,834.56 : x
  2. Step 2: Convert to fraction form
    88,120.72/121,606.92 = 47,834.56/x
  3. Step 3: Cross multiply
    88,120.72x = 121,606.92 × 47,834.56
  4. Step 4: Simplify right side
    88,120.72x = 5,817,013,511.16
  5. Step 5: Solve for x
    x = 5,817,013,511.16/88,120.72
  6. Step 6: Final answer
    x = 66,011.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.