Home / 66,541.85-99,812.78-45,546.65

Finding the Fourth Proportional to 66,541.85, 99,812.78 and 45,546.65

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Solution

The fourth proportional to 66,541.85, 99,812.78 and 45,546.65 is: 68,319.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,541.85 : 99,812.78 = 45,546.65 : x
  2. Step 2: Convert to fraction form
    66,541.85/99,812.78 = 45,546.65/x
  3. Step 3: Cross multiply
    66,541.85x = 99,812.78 × 45,546.65
  4. Step 4: Simplify right side
    66,541.85x = 4,546,137,528.45
  5. Step 5: Solve for x
    x = 4,546,137,528.45/66,541.85
  6. Step 6: Final answer
    x = 68,319.98

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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.