Home / 90,781.97-136,172.75-43,252.79

Finding the Fourth Proportional to 90,781.97, 136,172.75 and 43,252.79

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Solution

The fourth proportional to 90,781.97, 136,172.75 and 43,252.79 is: 64,879.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,781.97 : 136,172.75 = 43,252.79 : x
  2. Step 2: Convert to fraction form
    90,781.97/136,172.75 = 43,252.79/x
  3. Step 3: Cross multiply
    90,781.97x = 136,172.75 × 43,252.79
  4. Step 4: Simplify right side
    90,781.97x = 5,889,850,462.34
  5. Step 5: Solve for x
    x = 5,889,850,462.34/90,781.97
  6. Step 6: Final answer
    x = 64,879.08

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1.5x scale

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.