Home / 80,531.82-111,125.76-47,017.26

Finding the Fourth Proportional to 80,531.82, 111,125.76 and 47,017.26

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Solution

The fourth proportional to 80,531.82, 111,125.76 and 47,017.26 is: 64,879.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,531.82 : 111,125.76 = 47,017.26 : x
  2. Step 2: Convert to fraction form
    80,531.82/111,125.76 = 47,017.26/x
  3. Step 3: Cross multiply
    80,531.82x = 111,125.76 × 47,017.26
  4. Step 4: Simplify right side
    80,531.82x = 5,224,828,750.62
  5. Step 5: Solve for x
    x = 5,224,828,750.62/80,531.82
  6. Step 6: Final answer
    x = 64,879.06

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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.