Home / 90,839.36-136,062.10-43,994

Finding the Fourth Proportional to 90,839.36, 136,062.10 and 43,994

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Solution

The fourth proportional to 90,839.36, 136,062.10 and 43,994 is: 65,895.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,839.36 : 136,062.10 = 43,994 : x
  2. Step 2: Convert to fraction form
    90,839.36/136,062.10 = 43,994/x
  3. Step 3: Cross multiply
    90,839.36x = 136,062.10 × 43,994
  4. Step 4: Simplify right side
    90,839.36x = 5,985,916,027.40
  5. Step 5: Solve for x
    x = 5,985,916,027.40/90,839.36
  6. Step 6: Final answer
    x = 65,895.62

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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.