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Finding the Fourth Proportional to 45,172.54, 67,765.03 and 15,189.10

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Solution

The fourth proportional to 45,172.54, 67,765.03 and 15,189.10 is: 22,785.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,172.54 : 67,765.03 = 15,189.10 : x
  2. Step 2: Convert to fraction form
    45,172.54/67,765.03 = 15,189.10/x
  3. Step 3: Cross multiply
    45,172.54x = 67,765.03 × 15,189.10
  4. Step 4: Simplify right side
    45,172.54x = 1,029,289,817.17
  5. Step 5: Solve for x
    x = 1,029,289,817.17/45,172.54
  6. Step 6: Final answer
    x = 22,785.74

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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.