Home / 71,581.21-107,335.10-37,865.43

Finding the Fourth Proportional to 71,581.21, 107,335.10 and 37,865.43

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Solution

The fourth proportional to 71,581.21, 107,335.10 and 37,865.43 is: 56,778.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,581.21 : 107,335.10 = 37,865.43 : x
  2. Step 2: Convert to fraction form
    71,581.21/107,335.10 = 37,865.43/x
  3. Step 3: Cross multiply
    71,581.21x = 107,335.10 × 37,865.43
  4. Step 4: Simplify right side
    71,581.21x = 4,064,289,715.59
  5. Step 5: Solve for x
    x = 4,064,289,715.59/71,581.21
  6. Step 6: Final answer
    x = 56,778.72

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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.