Home / 80,605.53-111,252.08-55,182.20

Finding the Fourth Proportional to 80,605.53, 111,252.08 and 55,182.20

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Solution

The fourth proportional to 80,605.53, 111,252.08 and 55,182.20 is: 76,162.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,605.53 : 111,252.08 = 55,182.20 : x
  2. Step 2: Convert to fraction form
    80,605.53/111,252.08 = 55,182.20/x
  3. Step 3: Cross multiply
    80,605.53x = 111,252.08 × 55,182.20
  4. Step 4: Simplify right side
    80,605.53x = 6,139,134,110.67
  5. Step 5: Solve for x
    x = 6,139,134,110.67/80,605.53
  6. Step 6: Final answer
    x = 76,162.69

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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.