Home / 90,478.22-135,718.31-27,298.89

Finding the Fourth Proportional to 90,478.22, 135,718.31 and 27,298.89

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Solution

The fourth proportional to 90,478.22, 135,718.31 and 27,298.89 is: 40,948.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,478.22 : 135,718.31 = 27,298.89 : x
  2. Step 2: Convert to fraction form
    90,478.22/135,718.31 = 27,298.89/x
  3. Step 3: Cross multiply
    90,478.22x = 135,718.31 × 27,298.89
  4. Step 4: Simplify right side
    90,478.22x = 3,704,959,283.92
  5. Step 5: Solve for x
    x = 3,704,959,283.92/90,478.22
  6. Step 6: Final answer
    x = 40,948.63

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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.