Home / 66,633.89-99,901.40-40,332.65

Finding the Fourth Proportional to 66,633.89, 99,901.40 and 40,332.65

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Solution

The fourth proportional to 66,633.89, 99,901.40 and 40,332.65 is: 60,469.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,633.89 : 99,901.40 = 40,332.65 : x
  2. Step 2: Convert to fraction form
    66,633.89/99,901.40 = 40,332.65/x
  3. Step 3: Cross multiply
    66,633.89x = 99,901.40 × 40,332.65
  4. Step 4: Simplify right side
    66,633.89x = 4,029,287,499.54
  5. Step 5: Solve for x
    x = 4,029,287,499.54/66,633.89
  6. Step 6: Final answer
    x = 60,469.05

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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.