Home / 86,765.11-130,133.18-30,592.01

Finding the Fourth Proportional to 86,765.11, 130,133.18 and 30,592.01

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Solution

The fourth proportional to 86,765.11, 130,133.18 and 30,592.01 is: 45,882.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,765.11 : 130,133.18 = 30,592.01 : x
  2. Step 2: Convert to fraction form
    86,765.11/130,133.18 = 30,592.01/x
  3. Step 3: Cross multiply
    86,765.11x = 130,133.18 × 30,592.01
  4. Step 4: Simplify right side
    86,765.11x = 3,981,035,945.70
  5. Step 5: Solve for x
    x = 3,981,035,945.70/86,765.11
  6. Step 6: Final answer
    x = 45,882.91

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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.