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Finding the Fourth Proportional to 85,303.79, 127,851.92 and 60,351.04

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Solution

The fourth proportional to 85,303.79, 127,851.92 and 60,351.04 is: 90,453.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,303.79 : 127,851.92 = 60,351.04 : x
  2. Step 2: Convert to fraction form
    85,303.79/127,851.92 = 60,351.04/x
  3. Step 3: Cross multiply
    85,303.79x = 127,851.92 × 60,351.04
  4. Step 4: Simplify right side
    85,303.79x = 7,715,996,169.24
  5. Step 5: Solve for x
    x = 7,715,996,169.24/85,303.79
  6. Step 6: Final answer
    x = 90,453.14

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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.