Home / 66,498.78-99,661.56-27,009.75

Finding the Fourth Proportional to 66,498.78, 99,661.56 and 27,009.75

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Solution

The fourth proportional to 66,498.78, 99,661.56 and 27,009.75 is: 40,479.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,498.78 : 99,661.56 = 27,009.75 : x
  2. Step 2: Convert to fraction form
    66,498.78/99,661.56 = 27,009.75/x
  3. Step 3: Cross multiply
    66,498.78x = 99,661.56 × 27,009.75
  4. Step 4: Simplify right side
    66,498.78x = 2,691,833,820.21
  5. Step 5: Solve for x
    x = 2,691,833,820.21/66,498.78
  6. Step 6: Final answer
    x = 40,479.45

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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.