Home / 80,678.40-120,952.32-36,282.24

Finding the Fourth Proportional to 80,678.40, 120,952.32 and 36,282.24

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Solution

The fourth proportional to 80,678.40, 120,952.32 and 36,282.24 is: 54,394.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,678.40 : 120,952.32 = 36,282.24 : x
  2. Step 2: Convert to fraction form
    80,678.40/120,952.32 = 36,282.24/x
  3. Step 3: Cross multiply
    80,678.40x = 120,952.32 × 36,282.24
  4. Step 4: Simplify right side
    80,678.40x = 4,388,421,102.80
  5. Step 5: Solve for x
    x = 4,388,421,102.80/80,678.40
  6. Step 6: Final answer
    x = 54,394.00

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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.