Home / 80,733.65-121,090.95-21,573.88

Finding the Fourth Proportional to 80,733.65, 121,090.95 and 21,573.88

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Solution

The fourth proportional to 80,733.65, 121,090.95 and 21,573.88 is: 32,358.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,733.65 : 121,090.95 = 21,573.88 : x
  2. Step 2: Convert to fraction form
    80,733.65/121,090.95 = 21,573.88/x
  3. Step 3: Cross multiply
    80,733.65x = 121,090.95 × 21,573.88
  4. Step 4: Simplify right side
    80,733.65x = 2,612,401,321.66
  5. Step 5: Solve for x
    x = 2,612,401,321.66/80,733.65
  6. Step 6: Final answer
    x = 32,358.27

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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.