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Finding the Fourth Proportional to 68,275.88, 102,343.46 and 26,144.45

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Solution

The fourth proportional to 68,275.88, 102,343.46 and 26,144.45 is: 39,189.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,275.88 : 102,343.46 = 26,144.45 : x
  2. Step 2: Convert to fraction form
    68,275.88/102,343.46 = 26,144.45/x
  3. Step 3: Cross multiply
    68,275.88x = 102,343.46 × 26,144.45
  4. Step 4: Simplify right side
    68,275.88x = 2,675,712,830.36
  5. Step 5: Solve for x
    x = 2,675,712,830.36/68,275.88
  6. Step 6: Final answer
    x = 39,189.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.