Home / 90,874.31-136,295.06-27,679.32

Finding the Fourth Proportional to 90,874.31, 136,295.06 and 27,679.32

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Solution

The fourth proportional to 90,874.31, 136,295.06 and 27,679.32 is: 41,513.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,874.31 : 136,295.06 = 27,679.32 : x
  2. Step 2: Convert to fraction form
    90,874.31/136,295.06 = 27,679.32/x
  3. Step 3: Cross multiply
    90,874.31x = 136,295.06 × 27,679.32
  4. Step 4: Simplify right side
    90,874.31x = 3,772,554,441.76
  5. Step 5: Solve for x
    x = 3,772,554,441.76/90,874.31
  6. Step 6: Final answer
    x = 41,513.98

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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.