Home / 71,187.36-98,231.04-39,351.12

Finding the Fourth Proportional to 71,187.36, 98,231.04 and 39,351.12

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Solution

The fourth proportional to 71,187.36, 98,231.04 and 39,351.12 is: 54,300.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,187.36 : 98,231.04 = 39,351.12 : x
  2. Step 2: Convert to fraction form
    71,187.36/98,231.04 = 39,351.12/x
  3. Step 3: Cross multiply
    71,187.36x = 98,231.04 × 39,351.12
  4. Step 4: Simplify right side
    71,187.36x = 3,865,501,442.76
  5. Step 5: Solve for x
    x = 3,865,501,442.76/71,187.36
  6. Step 6: Final answer
    x = 54,300.39

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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.