Home / 81,712.08-112,753.86-45,906.06

Finding the Fourth Proportional to 81,712.08, 112,753.86 and 45,906.06

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Solution

The fourth proportional to 81,712.08, 112,753.86 and 45,906.06 is: 63,345.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,712.08 : 112,753.86 = 45,906.06 : x
  2. Step 2: Convert to fraction form
    81,712.08/112,753.86 = 45,906.06/x
  3. Step 3: Cross multiply
    81,712.08x = 112,753.86 × 45,906.06
  4. Step 4: Simplify right side
    81,712.08x = 5,176,085,462.39
  5. Step 5: Solve for x
    x = 5,176,085,462.39/81,712.08
  6. Step 6: Final answer
    x = 63,345.41

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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.