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Finding the Fourth Proportional to 45,398.40, 68,099.46 and 15,819.24

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Solution

The fourth proportional to 45,398.40, 68,099.46 and 15,819.24 is: 23,729.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,398.40 : 68,099.46 = 15,819.24 : x
  2. Step 2: Convert to fraction form
    45,398.40/68,099.46 = 15,819.24/x
  3. Step 3: Cross multiply
    45,398.40x = 68,099.46 × 15,819.24
  4. Step 4: Simplify right side
    45,398.40x = 1,077,281,701.61
  5. Step 5: Solve for x
    x = 1,077,281,701.61/45,398.40
  6. Step 6: Final answer
    x = 23,729.51

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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.