Home / 66,389.60-91,616.49-36,175.18

Finding the Fourth Proportional to 66,389.60, 91,616.49 and 36,175.18

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Solution

The fourth proportional to 66,389.60, 91,616.49 and 36,175.18 is: 49,921.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,389.60 : 91,616.49 = 36,175.18 : x
  2. Step 2: Convert to fraction form
    66,389.60/91,616.49 = 36,175.18/x
  3. Step 3: Cross multiply
    66,389.60x = 91,616.49 × 36,175.18
  4. Step 4: Simplify right side
    66,389.60x = 3,314,242,558.64
  5. Step 5: Solve for x
    x = 3,314,242,558.64/66,389.60
  6. Step 6: Final answer
    x = 49,921.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.