Home / 45,538.20-68,234.40-28,868.40

Finding the Fourth Proportional to 45,538.20, 68,234.40 and 28,868.40

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Solution

The fourth proportional to 45,538.20, 68,234.40 and 28,868.40 is: 43,256.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,538.20 : 68,234.40 = 28,868.40 : x
  2. Step 2: Convert to fraction form
    45,538.20/68,234.40 = 28,868.40/x
  3. Step 3: Cross multiply
    45,538.20x = 68,234.40 × 28,868.40
  4. Step 4: Simplify right side
    45,538.20x = 1,969,817,952.96
  5. Step 5: Solve for x
    x = 1,969,817,952.96/45,538.20
  6. Step 6: Final answer
    x = 43,256.39

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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.