Home / 71,411.10-107,131.63-21,494.85

Finding the Fourth Proportional to 71,411.10, 107,131.63 and 21,494.85

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Solution

The fourth proportional to 71,411.10, 107,131.63 and 21,494.85 is: 32,246.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,411.10 : 107,131.63 = 21,494.85 : x
  2. Step 2: Convert to fraction form
    71,411.10/107,131.63 = 21,494.85/x
  3. Step 3: Cross multiply
    71,411.10x = 107,131.63 × 21,494.85
  4. Step 4: Simplify right side
    71,411.10x = 2,302,778,317.11
  5. Step 5: Solve for x
    x = 2,302,778,317.11/71,411.10
  6. Step 6: Final answer
    x = 32,246.78

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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.