Home / 66,356.25-91,572.74-36,142.17

Finding the Fourth Proportional to 66,356.25, 91,572.74 and 36,142.17

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Solution

The fourth proportional to 66,356.25, 91,572.74 and 36,142.17 is: 49,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,356.25 : 91,572.74 = 36,142.17 : x
  2. Step 2: Convert to fraction form
    66,356.25/91,572.74 = 36,142.17/x
  3. Step 3: Cross multiply
    66,356.25x = 91,572.74 × 36,142.17
  4. Step 4: Simplify right side
    66,356.25x = 3,309,637,355.73
  5. Step 5: Solve for x
    x = 3,309,637,355.73/66,356.25
  6. Step 6: Final answer
    x = 49,876.80

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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.