Home / 51,172.32-70,413.12-39,231.12

Finding the Fourth Proportional to 51,172.32, 70,413.12 and 39,231.12

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Solution

The fourth proportional to 51,172.32, 70,413.12 and 39,231.12 is: 53,982.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,172.32 : 70,413.12 = 39,231.12 : x
  2. Step 2: Convert to fraction form
    51,172.32/70,413.12 = 39,231.12/x
  3. Step 3: Cross multiply
    51,172.32x = 70,413.12 × 39,231.12
  4. Step 4: Simplify right side
    51,172.32x = 2,762,385,560.29
  5. Step 5: Solve for x
    x = 2,762,385,560.29/51,172.32
  6. Step 6: Final answer
    x = 53,982.03

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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.