Home / 86,905.68-130,416.96-30,745.58

Finding the Fourth Proportional to 86,905.68, 130,416.96 and 30,745.58

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Solution

The fourth proportional to 86,905.68, 130,416.96 and 30,745.58 is: 46,139.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,905.68 : 130,416.96 = 30,745.58 : x
  2. Step 2: Convert to fraction form
    86,905.68/130,416.96 = 30,745.58/x
  3. Step 3: Cross multiply
    86,905.68x = 130,416.96 × 30,745.58
  4. Step 4: Simplify right side
    86,905.68x = 4,009,744,453.78
  5. Step 5: Solve for x
    x = 4,009,744,453.78/86,905.68
  6. Step 6: Final answer
    x = 46,139.04

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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.