Home / 80,017.62-120,026.46-20,853.14

Finding the Fourth Proportional to 80,017.62, 120,026.46 and 20,853.14

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Solution

The fourth proportional to 80,017.62, 120,026.46 and 20,853.14 is: 31,279.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,017.62 : 120,026.46 = 20,853.14 : x
  2. Step 2: Convert to fraction form
    80,017.62/120,026.46 = 20,853.14/x
  3. Step 3: Cross multiply
    80,017.62x = 120,026.46 × 20,853.14
  4. Step 4: Simplify right side
    80,017.62x = 2,502,928,574.08
  5. Step 5: Solve for x
    x = 2,502,928,574.08/80,017.62
  6. Step 6: Final answer
    x = 31,279.72

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1.5x scale

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.