Home / 79,041.12-109,080.24-45,517.92

Finding the Fourth Proportional to 79,041.12, 109,080.24 and 45,517.92

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Solution

The fourth proportional to 79,041.12, 109,080.24 and 45,517.92 is: 62,816.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,041.12 : 109,080.24 = 45,517.92 : x
  2. Step 2: Convert to fraction form
    79,041.12/109,080.24 = 45,517.92/x
  3. Step 3: Cross multiply
    79,041.12x = 109,080.24 × 45,517.92
  4. Step 4: Simplify right side
    79,041.12x = 4,965,105,637.90
  5. Step 5: Solve for x
    x = 4,965,105,637.90/79,041.12
  6. Step 6: Final answer
    x = 62,816.74

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1.5x scale

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.