Home / 66,133.34-99,199.30-26,689.78

Finding the Fourth Proportional to 66,133.34, 99,199.30 and 26,689.78

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Solution

The fourth proportional to 66,133.34, 99,199.30 and 26,689.78 is: 40,034.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,133.34 : 99,199.30 = 26,689.78 : x
  2. Step 2: Convert to fraction form
    66,133.34/99,199.30 = 26,689.78/x
  3. Step 3: Cross multiply
    66,133.34x = 99,199.30 × 26,689.78
  4. Step 4: Simplify right side
    66,133.34x = 2,647,607,493.15
  5. Step 5: Solve for x
    x = 2,647,607,493.15/66,133.34
  6. Step 6: Final answer
    x = 40,034.38

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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.