Home / 45,144.64-67,672.77-18,856.90

Finding the Fourth Proportional to 45,144.64, 67,672.77 and 18,856.90

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Solution

The fourth proportional to 45,144.64, 67,672.77 and 18,856.90 is: 28,266.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,144.64 : 67,672.77 = 18,856.90 : x
  2. Step 2: Convert to fraction form
    45,144.64/67,672.77 = 18,856.90/x
  3. Step 3: Cross multiply
    45,144.64x = 67,672.77 × 18,856.90
  4. Step 4: Simplify right side
    45,144.64x = 1,276,098,656.61
  5. Step 5: Solve for x
    x = 1,276,098,656.61/45,144.64
  6. Step 6: Final answer
    x = 28,266.89

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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.