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Finding the Fourth Proportional to 71,515.58, 107,274.16 and 21,596.10

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Solution

The fourth proportional to 71,515.58, 107,274.16 and 21,596.10 is: 32,394.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,515.58 : 107,274.16 = 21,596.10 : x
  2. Step 2: Convert to fraction form
    71,515.58/107,274.16 = 21,596.10/x
  3. Step 3: Cross multiply
    71,515.58x = 107,274.16 × 21,596.10
  4. Step 4: Simplify right side
    71,515.58x = 2,316,703,486.78
  5. Step 5: Solve for x
    x = 2,316,703,486.78/71,515.58
  6. Step 6: Final answer
    x = 32,394.39

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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.