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Finding the Fourth Proportional to 68,338.28, 94,302.24 and 39,658.80

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Solution

The fourth proportional to 68,338.28, 94,302.24 and 39,658.80 is: 54,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,338.28 : 94,302.24 = 39,658.80 : x
  2. Step 2: Convert to fraction form
    68,338.28/94,302.24 = 39,658.80/x
  3. Step 3: Cross multiply
    68,338.28x = 94,302.24 × 39,658.80
  4. Step 4: Simplify right side
    68,338.28x = 3,739,913,675.71
  5. Step 5: Solve for x
    x = 3,739,913,675.71/68,338.28
  6. Step 6: Final answer
    x = 54,726.48

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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.