Home / 85,325.13-127,933.02-35,439.66

Finding the Fourth Proportional to 85,325.13, 127,933.02 and 35,439.66

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Solution

The fourth proportional to 85,325.13, 127,933.02 and 35,439.66 is: 53,136.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,325.13 : 127,933.02 = 35,439.66 : x
  2. Step 2: Convert to fraction form
    85,325.13/127,933.02 = 35,439.66/x
  3. Step 3: Cross multiply
    85,325.13x = 127,933.02 × 35,439.66
  4. Step 4: Simplify right side
    85,325.13x = 4,533,902,731.57
  5. Step 5: Solve for x
    x = 4,533,902,731.57/85,325.13
  6. Step 6: Final answer
    x = 53,136.78

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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.