Home / 86,747.38-130,121.99-30,577.02

Finding the Fourth Proportional to 86,747.38, 130,121.99 and 30,577.02

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Solution

The fourth proportional to 86,747.38, 130,121.99 and 30,577.02 is: 45,865.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,747.38 : 130,121.99 = 30,577.02 : x
  2. Step 2: Convert to fraction form
    86,747.38/130,121.99 = 30,577.02/x
  3. Step 3: Cross multiply
    86,747.38x = 130,121.99 × 30,577.02
  4. Step 4: Simplify right side
    86,747.38x = 3,978,742,767.11
  5. Step 5: Solve for x
    x = 3,978,742,767.11/86,747.38
  6. Step 6: Final answer
    x = 45,865.86

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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.