Home / 81,180.76-112,031.66-45,374.68

Finding the Fourth Proportional to 81,180.76, 112,031.66 and 45,374.68

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Solution

The fourth proportional to 81,180.76, 112,031.66 and 45,374.68 is: 62,618.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,180.76 : 112,031.66 = 45,374.68 : x
  2. Step 2: Convert to fraction form
    81,180.76/112,031.66 = 45,374.68/x
  3. Step 3: Cross multiply
    81,180.76x = 112,031.66 × 45,374.68
  4. Step 4: Simplify right side
    81,180.76x = 5,083,400,722.37
  5. Step 5: Solve for x
    x = 5,083,400,722.37/81,180.76
  6. Step 6: Final answer
    x = 62,618.29

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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.