Home / 90,747.40-136,167.12-40,817.36

Finding the Fourth Proportional to 90,747.40, 136,167.12 and 40,817.36

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Solution

The fourth proportional to 90,747.40, 136,167.12 and 40,817.36 is: 61,246.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,747.40 : 136,167.12 = 40,817.36 : x
  2. Step 2: Convert to fraction form
    90,747.40/136,167.12 = 40,817.36/x
  3. Step 3: Cross multiply
    90,747.40x = 136,167.12 × 40,817.36
  4. Step 4: Simplify right side
    90,747.40x = 5,557,982,357.20
  5. Step 5: Solve for x
    x = 5,557,982,357.20/90,747.40
  6. Step 6: Final answer
    x = 61,246.74

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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.