Home / 88,234.42-121,763.10-47,947.42

Finding the Fourth Proportional to 88,234.42, 121,763.10 and 47,947.42

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Solution

The fourth proportional to 88,234.42, 121,763.10 and 47,947.42 is: 66,167.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,234.42 : 121,763.10 = 47,947.42 : x
  2. Step 2: Convert to fraction form
    88,234.42/121,763.10 = 47,947.42/x
  3. Step 3: Cross multiply
    88,234.42x = 121,763.10 × 47,947.42
  4. Step 4: Simplify right side
    88,234.42x = 5,838,226,496.20
  5. Step 5: Solve for x
    x = 5,838,226,496.20/88,234.42
  6. Step 6: Final answer
    x = 66,167.22

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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.