Home / 73,117.20-109,805.40-56,517.60

Finding the Fourth Proportional to 73,117.20, 109,805.40 and 56,517.60

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Solution

The fourth proportional to 73,117.20, 109,805.40 and 56,517.60 is: 84,876.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,117.20 : 109,805.40 = 56,517.60 : x
  2. Step 2: Convert to fraction form
    73,117.20/109,805.40 = 56,517.60/x
  3. Step 3: Cross multiply
    73,117.20x = 109,805.40 × 56,517.60
  4. Step 4: Simplify right side
    73,117.20x = 6,205,937,675.04
  5. Step 5: Solve for x
    x = 6,205,937,675.04/73,117.20
  6. Step 6: Final answer
    x = 84,876.58

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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.