Home / 80,799.40-121,140.76-34,026.76

Finding the Fourth Proportional to 80,799.40, 121,140.76 and 34,026.76

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Solution

The fourth proportional to 80,799.40, 121,140.76 and 34,026.76 is: 51,015.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,799.40 : 121,140.76 = 34,026.76 : x
  2. Step 2: Convert to fraction form
    80,799.40/121,140.76 = 34,026.76/x
  3. Step 3: Cross multiply
    80,799.40x = 121,140.76 × 34,026.76
  4. Step 4: Simplify right side
    80,799.40x = 4,122,027,566.74
  5. Step 5: Solve for x
    x = 4,122,027,566.74/80,799.40
  6. Step 6: Final answer
    x = 51,015.57

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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.