Home / 86,908.56-130,362.84-40,155.36

Finding the Fourth Proportional to 86,908.56, 130,362.84 and 40,155.36

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Solution

The fourth proportional to 86,908.56, 130,362.84 and 40,155.36 is: 60,233.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,908.56 : 130,362.84 = 40,155.36 : x
  2. Step 2: Convert to fraction form
    86,908.56/130,362.84 = 40,155.36/x
  3. Step 3: Cross multiply
    86,908.56x = 130,362.84 × 40,155.36
  4. Step 4: Simplify right side
    86,908.56x = 5,234,766,770.82
  5. Step 5: Solve for x
    x = 5,234,766,770.82/86,908.56
  6. Step 6: Final answer
    x = 60,233.04

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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.