Home / 81,328.14-112,233.39-45,521.46

Finding the Fourth Proportional to 81,328.14, 112,233.39 and 45,521.46

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Solution

The fourth proportional to 81,328.14, 112,233.39 and 45,521.46 is: 62,819.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,328.14 : 112,233.39 = 45,521.46 : x
  2. Step 2: Convert to fraction form
    81,328.14/112,233.39 = 45,521.46/x
  3. Step 3: Cross multiply
    81,328.14x = 112,233.39 × 45,521.46
  4. Step 4: Simplify right side
    81,328.14x = 5,109,027,773.55
  5. Step 5: Solve for x
    x = 5,109,027,773.55/81,328.14
  6. Step 6: Final answer
    x = 62,819.93

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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.