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Finding the Fourth Proportional to 66,208.79, 91,366.22 and 37,531.10

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Solution

The fourth proportional to 66,208.79, 91,366.22 and 37,531.10 is: 51,791.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,208.79 : 91,366.22 = 37,531.10 : x
  2. Step 2: Convert to fraction form
    66,208.79/91,366.22 = 37,531.10/x
  3. Step 3: Cross multiply
    66,208.79x = 91,366.22 × 37,531.10
  4. Step 4: Simplify right side
    66,208.79x = 3,429,074,517.47
  5. Step 5: Solve for x
    x = 3,429,074,517.47/66,208.79
  6. Step 6: Final answer
    x = 51,791.83

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1.5x scale

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.