Home / 90,343.36-135,489.44-57,013.44

Finding the Fourth Proportional to 90,343.36, 135,489.44 and 57,013.44

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Solution

The fourth proportional to 90,343.36, 135,489.44 and 57,013.44 is: 85,504.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,343.36 : 135,489.44 = 57,013.44 : x
  2. Step 2: Convert to fraction form
    90,343.36/135,489.44 = 57,013.44/x
  3. Step 3: Cross multiply
    90,343.36x = 135,489.44 × 57,013.44
  4. Step 4: Simplify right side
    90,343.36x = 7,724,719,058.07
  5. Step 5: Solve for x
    x = 7,724,719,058.07/90,343.36
  6. Step 6: Final answer
    x = 85,504.00

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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.