Home / 71,357.13-107,031.58-21,436.13

Finding the Fourth Proportional to 71,357.13, 107,031.58 and 21,436.13

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Solution

The fourth proportional to 71,357.13, 107,031.58 and 21,436.13 is: 32,152.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,357.13 : 107,031.58 = 21,436.13 : x
  2. Step 2: Convert to fraction form
    71,357.13/107,031.58 = 21,436.13/x
  3. Step 3: Cross multiply
    71,357.13x = 107,031.58 × 21,436.13
  4. Step 4: Simplify right side
    71,357.13x = 2,294,342,755.80
  5. Step 5: Solve for x
    x = 2,294,342,755.80/71,357.13
  6. Step 6: Final answer
    x = 32,152.96

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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.