Home / 85,264.05-127,857.20-40,911.69

Finding the Fourth Proportional to 85,264.05, 127,857.20 and 40,911.69

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Solution

The fourth proportional to 85,264.05, 127,857.20 and 40,911.69 is: 61,348.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,264.05 : 127,857.20 = 40,911.69 : x
  2. Step 2: Convert to fraction form
    85,264.05/127,857.20 = 40,911.69/x
  3. Step 3: Cross multiply
    85,264.05x = 127,857.20 × 40,911.69
  4. Step 4: Simplify right side
    85,264.05x = 5,230,854,130.67
  5. Step 5: Solve for x
    x = 5,230,854,130.67/85,264.05
  6. Step 6: Final answer
    x = 61,348.88

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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.