Home / 83,748.64-115,566.40-47,930.44

Finding the Fourth Proportional to 83,748.64, 115,566.40 and 47,930.44

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Solution

The fourth proportional to 83,748.64, 115,566.40 and 47,930.44 is: 66,140.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,748.64 : 115,566.40 = 47,930.44 : x
  2. Step 2: Convert to fraction form
    83,748.64/115,566.40 = 47,930.44/x
  3. Step 3: Cross multiply
    83,748.64x = 115,566.40 × 47,930.44
  4. Step 4: Simplify right side
    83,748.64x = 5,539,148,401.22
  5. Step 5: Solve for x
    x = 5,539,148,401.22/83,748.64
  6. Step 6: Final answer
    x = 66,140.16

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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.