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Finding the Fourth Proportional to 68,050.56, 93,882.80 and 39,364.90

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Solution

The fourth proportional to 68,050.56, 93,882.80 and 39,364.90 is: 54,307.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,050.56 : 93,882.80 = 39,364.90 : x
  2. Step 2: Convert to fraction form
    68,050.56/93,882.80 = 39,364.90/x
  3. Step 3: Cross multiply
    68,050.56x = 93,882.80 × 39,364.90
  4. Step 4: Simplify right side
    68,050.56x = 3,695,687,057.13
  5. Step 5: Solve for x
    x = 3,695,687,057.13/68,050.56
  6. Step 6: Final answer
    x = 54,307.96

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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.