Home / 80,111.09-120,270.52-53,626.52

Finding the Fourth Proportional to 80,111.09, 120,270.52 and 53,626.52

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Solution

The fourth proportional to 80,111.09, 120,270.52 and 53,626.52 is: 80,509.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,111.09 : 120,270.52 = 53,626.52 : x
  2. Step 2: Convert to fraction form
    80,111.09/120,270.52 = 53,626.52/x
  3. Step 3: Cross multiply
    80,111.09x = 120,270.52 × 53,626.52
  4. Step 4: Simplify right side
    80,111.09x = 6,449,689,446.19
  5. Step 5: Solve for x
    x = 6,449,689,446.19/80,111.09
  6. Step 6: Final answer
    x = 80,509.32

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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.