Home / 86,815.20-130,222.80-24,485.70

Finding the Fourth Proportional to 86,815.20, 130,222.80 and 24,485.70

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Solution

The fourth proportional to 86,815.20, 130,222.80 and 24,485.70 is: 36,728.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,815.20 : 130,222.80 = 24,485.70 : x
  2. Step 2: Convert to fraction form
    86,815.20/130,222.80 = 24,485.70/x
  3. Step 3: Cross multiply
    86,815.20x = 130,222.80 × 24,485.70
  4. Step 4: Simplify right side
    86,815.20x = 3,188,596,413.96
  5. Step 5: Solve for x
    x = 3,188,596,413.96/86,815.20
  6. Step 6: Final answer
    x = 36,728.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.