Home / 45,179.52-67,760.96-18,877.20

Finding the Fourth Proportional to 45,179.52, 67,760.96 and 18,877.20

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Solution

The fourth proportional to 45,179.52, 67,760.96 and 18,877.20 is: 28,312.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,179.52 : 67,760.96 = 18,877.20 : x
  2. Step 2: Convert to fraction form
    45,179.52/67,760.96 = 18,877.20/x
  3. Step 3: Cross multiply
    45,179.52x = 67,760.96 × 18,877.20
  4. Step 4: Simplify right side
    45,179.52x = 1,279,137,194.11
  5. Step 5: Solve for x
    x = 1,279,137,194.11/45,179.52
  6. Step 6: Final answer
    x = 28,312.32

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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.