Home / 45,126.68-67,714.61-20,165.72

Finding the Fourth Proportional to 45,126.68, 67,714.61 and 20,165.72

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Solution

The fourth proportional to 45,126.68, 67,714.61 and 20,165.72 is: 30,259.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,126.68 : 67,714.61 = 20,165.72 : x
  2. Step 2: Convert to fraction form
    45,126.68/67,714.61 = 20,165.72/x
  3. Step 3: Cross multiply
    45,126.68x = 67,714.61 × 20,165.72
  4. Step 4: Simplify right side
    45,126.68x = 1,365,513,425.77
  5. Step 5: Solve for x
    x = 1,365,513,425.77/45,126.68
  6. Step 6: Final answer
    x = 30,259.56

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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.