Home / 90,045.30-135,086.04-26,866.38

Finding the Fourth Proportional to 90,045.30, 135,086.04 and 26,866.38

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Solution

The fourth proportional to 90,045.30, 135,086.04 and 26,866.38 is: 40,304.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,045.30 : 135,086.04 = 26,866.38 : x
  2. Step 2: Convert to fraction form
    90,045.30/135,086.04 = 26,866.38/x
  3. Step 3: Cross multiply
    90,045.30x = 135,086.04 × 26,866.38
  4. Step 4: Simplify right side
    90,045.30x = 3,629,272,883.34
  5. Step 5: Solve for x
    x = 3,629,272,883.34/90,045.30
  6. Step 6: Final answer
    x = 40,304.97

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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.