Home / 86,150.31-129,227.89-23,820.81

Finding the Fourth Proportional to 86,150.31, 129,227.89 and 23,820.81

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Solution

The fourth proportional to 86,150.31, 129,227.89 and 23,820.81 is: 35,731.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,150.31 : 129,227.89 = 23,820.81 : x
  2. Step 2: Convert to fraction form
    86,150.31/129,227.89 = 23,820.81/x
  3. Step 3: Cross multiply
    86,150.31x = 129,227.89 × 23,820.81
  4. Step 4: Simplify right side
    86,150.31x = 3,078,313,014.39
  5. Step 5: Solve for x
    x = 3,078,313,014.39/86,150.31
  6. Step 6: Final answer
    x = 35,731.89

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1.5x scale

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.