Home / 80,751.13-121,100.86-26,705.77

Finding the Fourth Proportional to 80,751.13, 121,100.86 and 26,705.77

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Solution

The fourth proportional to 80,751.13, 121,100.86 and 26,705.77 is: 40,050.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,751.13 : 121,100.86 = 26,705.77 : x
  2. Step 2: Convert to fraction form
    80,751.13/121,100.86 = 26,705.77/x
  3. Step 3: Cross multiply
    80,751.13x = 121,100.86 × 26,705.77
  4. Step 4: Simplify right side
    80,751.13x = 3,234,092,125.78
  5. Step 5: Solve for x
    x = 3,234,092,125.78/80,751.13
  6. Step 6: Final answer
    x = 40,050.12

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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.