Home / 80,499.12-111,092.40-44,689.60

Finding the Fourth Proportional to 80,499.12, 111,092.40 and 44,689.60

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Solution

The fourth proportional to 80,499.12, 111,092.40 and 44,689.60 is: 61,673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,499.12 : 111,092.40 = 44,689.60 : x
  2. Step 2: Convert to fraction form
    80,499.12/111,092.40 = 44,689.60/x
  3. Step 3: Cross multiply
    80,499.12x = 111,092.40 × 44,689.60
  4. Step 4: Simplify right side
    80,499.12x = 4,964,674,919.04
  5. Step 5: Solve for x
    x = 4,964,674,919.04/80,499.12
  6. Step 6: Final answer
    x = 61,673.65

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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.