Home / 80,728.18-111,392.28-44,918.08

Finding the Fourth Proportional to 80,728.18, 111,392.28 and 44,918.08

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Solution

The fourth proportional to 80,728.18, 111,392.28 and 44,918.08 is: 61,979.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,728.18 : 111,392.28 = 44,918.08 : x
  2. Step 2: Convert to fraction form
    80,728.18/111,392.28 = 44,918.08/x
  3. Step 3: Cross multiply
    80,728.18x = 111,392.28 × 44,918.08
  4. Step 4: Simplify right side
    80,728.18x = 5,003,527,065.94
  5. Step 5: Solve for x
    x = 5,003,527,065.94/80,728.18
  6. Step 6: Final answer
    x = 61,979.93

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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.