Home / 80,530.40-111,133.04-44,722.72

Finding the Fourth Proportional to 80,530.40, 111,133.04 and 44,722.72

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Solution

The fourth proportional to 80,530.40, 111,133.04 and 44,722.72 is: 61,717.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,530.40 : 111,133.04 = 44,722.72 : x
  2. Step 2: Convert to fraction form
    80,530.40/111,133.04 = 44,722.72/x
  3. Step 3: Cross multiply
    80,530.40x = 111,133.04 × 44,722.72
  4. Step 4: Simplify right side
    80,530.40x = 4,970,171,830.67
  5. Step 5: Solve for x
    x = 4,970,171,830.67/80,530.40
  6. Step 6: Final answer
    x = 61,717.96

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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.