Home / 90,583.88-135,804.36-57,233.66

Finding the Fourth Proportional to 90,583.88, 135,804.36 and 57,233.66

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Solution

The fourth proportional to 90,583.88, 135,804.36 and 57,233.66 is: 85,805.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,583.88 : 135,804.36 = 57,233.66 : x
  2. Step 2: Convert to fraction form
    90,583.88/135,804.36 = 57,233.66/x
  3. Step 3: Cross multiply
    90,583.88x = 135,804.36 × 57,233.66
  4. Step 4: Simplify right side
    90,583.88x = 7,772,581,120.89
  5. Step 5: Solve for x
    x = 7,772,581,120.89/90,583.88
  6. Step 6: Final answer
    x = 85,805.34

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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.