Home / 89,760.20-134,646.70-27,430.60

Finding the Fourth Proportional to 89,760.20, 134,646.70 and 27,430.60

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Solution

The fourth proportional to 89,760.20, 134,646.70 and 27,430.60 is: 41,147.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,760.20 : 134,646.70 = 27,430.60 : x
  2. Step 2: Convert to fraction form
    89,760.20/134,646.70 = 27,430.60/x
  3. Step 3: Cross multiply
    89,760.20x = 134,646.70 × 27,430.60
  4. Step 4: Simplify right side
    89,760.20x = 3,693,439,769.02
  5. Step 5: Solve for x
    x = 3,693,439,769.02/89,760.20
  6. Step 6: Final answer
    x = 41,147.86

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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.