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Finding the Fourth Proportional to 66,541.35, 99,812.03 and 45,546.15

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Solution

The fourth proportional to 66,541.35, 99,812.03 and 45,546.15 is: 68,319.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,541.35 : 99,812.03 = 45,546.15 : x
  2. Step 2: Convert to fraction form
    66,541.35/99,812.03 = 45,546.15/x
  3. Step 3: Cross multiply
    66,541.35x = 99,812.03 × 45,546.15
  4. Step 4: Simplify right side
    66,541.35x = 4,546,053,462.45
  5. Step 5: Solve for x
    x = 4,546,053,462.45/66,541.35
  6. Step 6: Final answer
    x = 68,319.23

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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.