Home / 79,074.11-109,121.30-43,263.61

Finding the Fourth Proportional to 79,074.11, 109,121.30 and 43,263.61

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Solution

The fourth proportional to 79,074.11, 109,121.30 and 43,263.61 is: 59,703.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,074.11 : 109,121.30 = 43,263.61 : x
  2. Step 2: Convert to fraction form
    79,074.11/109,121.30 = 43,263.61/x
  3. Step 3: Cross multiply
    79,074.11x = 109,121.30 × 43,263.61
  4. Step 4: Simplify right side
    79,074.11x = 4,720,980,820.29
  5. Step 5: Solve for x
    x = 4,720,980,820.29/79,074.11
  6. Step 6: Final answer
    x = 59,703.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.