Home / 80,964.15-111,744.03-47,000.85

Finding the Fourth Proportional to 80,964.15, 111,744.03 and 47,000.85

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Solution

The fourth proportional to 80,964.15, 111,744.03 and 47,000.85 is: 64,869.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,964.15 : 111,744.03 = 47,000.85 : x
  2. Step 2: Convert to fraction form
    80,964.15/111,744.03 = 47,000.85/x
  3. Step 3: Cross multiply
    80,964.15x = 111,744.03 × 47,000.85
  4. Step 4: Simplify right side
    80,964.15x = 5,252,064,392.43
  5. Step 5: Solve for x
    x = 5,252,064,392.43/80,964.15
  6. Step 6: Final answer
    x = 64,869.01

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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.