Home / 71,223.36-98,287.74-39,391.08

Finding the Fourth Proportional to 71,223.36, 98,287.74 and 39,391.08

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Solution

The fourth proportional to 71,223.36, 98,287.74 and 39,391.08 is: 54,359.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,223.36 : 98,287.74 = 39,391.08 : x
  2. Step 2: Convert to fraction form
    71,223.36/98,287.74 = 39,391.08/x
  3. Step 3: Cross multiply
    71,223.36x = 98,287.74 × 39,391.08
  4. Step 4: Simplify right side
    71,223.36x = 3,871,660,229.36
  5. Step 5: Solve for x
    x = 3,871,660,229.36/71,223.36
  6. Step 6: Final answer
    x = 54,359.42

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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.