Home / 80,901.09-121,256.34-36,475.83

Finding the Fourth Proportional to 80,901.09, 121,256.34 and 36,475.83

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Solution

The fourth proportional to 80,901.09, 121,256.34 and 36,475.83 is: 54,670.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,901.09 : 121,256.34 = 36,475.83 : x
  2. Step 2: Convert to fraction form
    80,901.09/121,256.34 = 36,475.83/x
  3. Step 3: Cross multiply
    80,901.09x = 121,256.34 × 36,475.83
  4. Step 4: Simplify right side
    80,901.09x = 4,422,925,644.26
  5. Step 5: Solve for x
    x = 4,422,925,644.26/80,901.09
  6. Step 6: Final answer
    x = 54,670.78

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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.