Home / 81,372.33-112,291.52-45,565.47

Finding the Fourth Proportional to 81,372.33, 112,291.52 and 45,565.47

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Solution

The fourth proportional to 81,372.33, 112,291.52 and 45,565.47 is: 62,879.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,372.33 : 112,291.52 = 45,565.47 : x
  2. Step 2: Convert to fraction form
    81,372.33/112,291.52 = 45,565.47/x
  3. Step 3: Cross multiply
    81,372.33x = 112,291.52 × 45,565.47
  4. Step 4: Simplify right side
    81,372.33x = 5,116,615,657.99
  5. Step 5: Solve for x
    x = 5,116,615,657.99/81,372.33
  6. Step 6: Final answer
    x = 62,879.06

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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.