Home / 80,552.20-120,828.30-61,868.20

Finding the Fourth Proportional to 80,552.20, 120,828.30 and 61,868.20

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Solution

The fourth proportional to 80,552.20, 120,828.30 and 61,868.20 is: 92,802.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,552.20 : 120,828.30 = 61,868.20 : x
  2. Step 2: Convert to fraction form
    80,552.20/120,828.30 = 61,868.20/x
  3. Step 3: Cross multiply
    80,552.20x = 120,828.30 × 61,868.20
  4. Step 4: Simplify right side
    80,552.20x = 7,475,429,430.06
  5. Step 5: Solve for x
    x = 7,475,429,430.06/80,552.20
  6. Step 6: Final answer
    x = 92,802.30

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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.