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Finding the Fourth Proportional to 68,860.60, 95,031.80 and 38,648.44

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Solution

The fourth proportional to 68,860.60, 95,031.80 and 38,648.44 is: 53,337.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,860.60 : 95,031.80 = 38,648.44 : x
  2. Step 2: Convert to fraction form
    68,860.60/95,031.80 = 38,648.44/x
  3. Step 3: Cross multiply
    68,860.60x = 95,031.80 × 38,648.44
  4. Step 4: Simplify right side
    68,860.60x = 3,672,830,820.39
  5. Step 5: Solve for x
    x = 3,672,830,820.39/68,860.60
  6. Step 6: Final answer
    x = 53,337.19

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1.5x scale

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.