Home / 71,138.22-98,170.08-39,307.14

Finding the Fourth Proportional to 71,138.22, 98,170.08 and 39,307.14

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Solution

The fourth proportional to 71,138.22, 98,170.08 and 39,307.14 is: 54,243.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,138.22 : 98,170.08 = 39,307.14 : x
  2. Step 2: Convert to fraction form
    71,138.22/98,170.08 = 39,307.14/x
  3. Step 3: Cross multiply
    71,138.22x = 98,170.08 × 39,307.14
  4. Step 4: Simplify right side
    71,138.22x = 3,858,785,078.37
  5. Step 5: Solve for x
    x = 3,858,785,078.37/71,138.22
  6. Step 6: Final answer
    x = 54,243.49

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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.