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Finding the Fourth Proportional to 71,681.95, 107,519.48 and 29,561.34

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Solution

The fourth proportional to 71,681.95, 107,519.48 and 29,561.34 is: 44,340.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,681.95 : 107,519.48 = 29,561.34 : x
  2. Step 2: Convert to fraction form
    71,681.95/107,519.48 = 29,561.34/x
  3. Step 3: Cross multiply
    71,681.95x = 107,519.48 × 29,561.34
  4. Step 4: Simplify right side
    71,681.95x = 3,178,419,904.90
  5. Step 5: Solve for x
    x = 3,178,419,904.90/71,681.95
  6. Step 6: Final answer
    x = 44,340.59

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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.