Home / 85,266.06-127,860.20-40,913.70

Finding the Fourth Proportional to 85,266.06, 127,860.20 and 40,913.70

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Solution

The fourth proportional to 85,266.06, 127,860.20 and 40,913.70 is: 61,351.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,266.06 : 127,860.20 = 40,913.70 : x
  2. Step 2: Convert to fraction form
    85,266.06/127,860.20 = 40,913.70/x
  3. Step 3: Cross multiply
    85,266.06x = 127,860.20 × 40,913.70
  4. Step 4: Simplify right side
    85,266.06x = 5,231,233,660.17
  5. Step 5: Solve for x
    x = 5,231,233,660.17/85,266.06
  6. Step 6: Final answer
    x = 61,351.89

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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.