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Finding the Fourth Proportional to 83,530.88, 115,272.60 and 45,805.94

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Solution

The fourth proportional to 83,530.88, 115,272.60 and 45,805.94 is: 63,212.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,530.88 : 115,272.60 = 45,805.94 : x
  2. Step 2: Convert to fraction form
    83,530.88/115,272.60 = 45,805.94/x
  3. Step 3: Cross multiply
    83,530.88x = 115,272.60 × 45,805.94
  4. Step 4: Simplify right side
    83,530.88x = 5,280,169,799.24
  5. Step 5: Solve for x
    x = 5,280,169,799.24/83,530.88
  6. Step 6: Final answer
    x = 63,212.19

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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.