Home / 66,137.59-91,268.57-37,456.80

Finding the Fourth Proportional to 66,137.59, 91,268.57 and 37,456.80

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Solution

The fourth proportional to 66,137.59, 91,268.57 and 37,456.80 is: 51,689.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,137.59 : 91,268.57 = 37,456.80 : x
  2. Step 2: Convert to fraction form
    66,137.59/91,268.57 = 37,456.80/x
  3. Step 3: Cross multiply
    66,137.59x = 91,268.57 × 37,456.80
  4. Step 4: Simplify right side
    66,137.59x = 3,418,627,929.15
  5. Step 5: Solve for x
    x = 3,418,627,929.15/66,137.59
  6. Step 6: Final answer
    x = 51,689.64

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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.