Home / 66,515.38-91,791.23-49,534.20

Finding the Fourth Proportional to 66,515.38, 91,791.23 and 49,534.20

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Solution

The fourth proportional to 66,515.38, 91,791.23 and 49,534.20 is: 68,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,515.38 : 91,791.23 = 49,534.20 : x
  2. Step 2: Convert to fraction form
    66,515.38/91,791.23 = 49,534.20/x
  3. Step 3: Cross multiply
    66,515.38x = 91,791.23 × 49,534.20
  4. Step 4: Simplify right side
    66,515.38x = 4,546,804,897.40
  5. Step 5: Solve for x
    x = 4,546,804,897.40/66,515.38
  6. Step 6: Final answer
    x = 68,357.20

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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.