Home / 80,947.08-121,420.62-36,549.36

Finding the Fourth Proportional to 80,947.08, 121,420.62 and 36,549.36

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Solution

The fourth proportional to 80,947.08, 121,420.62 and 36,549.36 is: 54,824.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,947.08 : 121,420.62 = 36,549.36 : x
  2. Step 2: Convert to fraction form
    80,947.08/121,420.62 = 36,549.36/x
  3. Step 3: Cross multiply
    80,947.08x = 121,420.62 × 36,549.36
  4. Step 4: Simplify right side
    80,947.08x = 4,437,845,951.80
  5. Step 5: Solve for x
    x = 4,437,845,951.80/80,947.08
  6. Step 6: Final answer
    x = 54,824.04

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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.