Home / 71,224.66-98,287.27-39,394.09

Finding the Fourth Proportional to 71,224.66, 98,287.27 and 39,394.09

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Solution

The fourth proportional to 71,224.66, 98,287.27 and 39,394.09 is: 54,362.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,224.66 : 98,287.27 = 39,394.09 : x
  2. Step 2: Convert to fraction form
    71,224.66/98,287.27 = 39,394.09/x
  3. Step 3: Cross multiply
    71,224.66x = 98,287.27 × 39,394.09
  4. Step 4: Simplify right side
    71,224.66x = 3,871,937,560.23
  5. Step 5: Solve for x
    x = 3,871,937,560.23/71,224.66
  6. Step 6: Final answer
    x = 54,362.32

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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.