Home / 80,338.98-120,351.63-38,159.04

Finding the Fourth Proportional to 80,338.98, 120,351.63 and 38,159.04

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Solution

The fourth proportional to 80,338.98, 120,351.63 and 38,159.04 is: 57,164.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,338.98 : 120,351.63 = 38,159.04 : x
  2. Step 2: Convert to fraction form
    80,338.98/120,351.63 = 38,159.04/x
  3. Step 3: Cross multiply
    80,338.98x = 120,351.63 × 38,159.04
  4. Step 4: Simplify right side
    80,338.98x = 4,592,502,663.24
  5. Step 5: Solve for x
    x = 4,592,502,663.24/80,338.98
  6. Step 6: Final answer
    x = 57,164.06

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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.