Home / 80,370.12-120,530.57-55,569.54

Finding the Fourth Proportional to 80,370.12, 120,530.57 and 55,569.54

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Solution

The fourth proportional to 80,370.12, 120,530.57 and 55,569.54 is: 83,337.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,370.12 : 120,530.57 = 55,569.54 : x
  2. Step 2: Convert to fraction form
    80,370.12/120,530.57 = 55,569.54/x
  3. Step 3: Cross multiply
    80,370.12x = 120,530.57 × 55,569.54
  4. Step 4: Simplify right side
    80,370.12x = 6,697,828,330.84
  5. Step 5: Solve for x
    x = 6,697,828,330.84/80,370.12
  6. Step 6: Final answer
    x = 83,337.29

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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.