Home / 71,071.26-98,077.67-39,240.38

Finding the Fourth Proportional to 71,071.26, 98,077.67 and 39,240.38

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Solution

The fourth proportional to 71,071.26, 98,077.67 and 39,240.38 is: 54,151.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,071.26 : 98,077.67 = 39,240.38 : x
  2. Step 2: Convert to fraction form
    71,071.26/98,077.67 = 39,240.38/x
  3. Step 3: Cross multiply
    71,071.26x = 98,077.67 × 39,240.38
  4. Step 4: Simplify right side
    71,071.26x = 3,848,605,040.31
  5. Step 5: Solve for x
    x = 3,848,605,040.31/71,071.26
  6. Step 6: Final answer
    x = 54,151.36

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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.