Home / 80,800.03-120,904.79-47,535.76

Finding the Fourth Proportional to 80,800.03, 120,904.79 and 47,535.76

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Solution

The fourth proportional to 80,800.03, 120,904.79 and 47,535.76 is: 71,129.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,800.03 : 120,904.79 = 47,535.76 : x
  2. Step 2: Convert to fraction form
    80,800.03/120,904.79 = 47,535.76/x
  3. Step 3: Cross multiply
    80,800.03x = 120,904.79 × 47,535.76
  4. Step 4: Simplify right side
    80,800.03x = 5,747,301,080.29
  5. Step 5: Solve for x
    x = 5,747,301,080.29/80,800.03
  6. Step 6: Final answer
    x = 71,129.94

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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.