Home / 90,729.48-136,078.80-27,534.36

Finding the Fourth Proportional to 90,729.48, 136,078.80 and 27,534.36

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Solution

The fourth proportional to 90,729.48, 136,078.80 and 27,534.36 is: 41,296.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,729.48 : 136,078.80 = 27,534.36 : x
  2. Step 2: Convert to fraction form
    90,729.48/136,078.80 = 27,534.36/x
  3. Step 3: Cross multiply
    90,729.48x = 136,078.80 × 27,534.36
  4. Step 4: Simplify right side
    90,729.48x = 3,746,842,667.57
  5. Step 5: Solve for x
    x = 3,746,842,667.57/90,729.48
  6. Step 6: Final answer
    x = 41,296.86

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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.