Home / 71,015.40-98,002.08-39,185.48

Finding the Fourth Proportional to 71,015.40, 98,002.08 and 39,185.48

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Solution

The fourth proportional to 71,015.40, 98,002.08 and 39,185.48 is: 54,076.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,015.40 : 98,002.08 = 39,185.48 : x
  2. Step 2: Convert to fraction form
    71,015.40/98,002.08 = 39,185.48/x
  3. Step 3: Cross multiply
    71,015.40x = 98,002.08 × 39,185.48
  4. Step 4: Simplify right side
    71,015.40x = 3,840,258,545.80
  5. Step 5: Solve for x
    x = 3,840,258,545.80/71,015.40
  6. Step 6: Final answer
    x = 54,076.42

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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.