Home / 86,892.45-130,341.11-30,724.62

Finding the Fourth Proportional to 86,892.45, 130,341.11 and 30,724.62

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Solution

The fourth proportional to 86,892.45, 130,341.11 and 30,724.62 is: 46,087.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,892.45 : 130,341.11 = 30,724.62 : x
  2. Step 2: Convert to fraction form
    86,892.45/130,341.11 = 30,724.62/x
  3. Step 3: Cross multiply
    86,892.45x = 130,341.11 × 30,724.62
  4. Step 4: Simplify right side
    86,892.45x = 4,004,680,921.51
  5. Step 5: Solve for x
    x = 4,004,680,921.51/86,892.45
  6. Step 6: Final answer
    x = 46,087.79

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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.