Home / 72,891.27-109,166.81-56,118.20

Finding the Fourth Proportional to 72,891.27, 109,166.81 and 56,118.20

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Solution

The fourth proportional to 72,891.27, 109,166.81 and 56,118.20 is: 84,046.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,891.27 : 109,166.81 = 56,118.20 : x
  2. Step 2: Convert to fraction form
    72,891.27/109,166.81 = 56,118.20/x
  3. Step 3: Cross multiply
    72,891.27x = 109,166.81 × 56,118.20
  4. Step 4: Simplify right side
    72,891.27x = 6,126,244,050.52
  5. Step 5: Solve for x
    x = 6,126,244,050.52/72,891.27
  6. Step 6: Final answer
    x = 84,046.33

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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.