Home / 86,933.44-130,347.78-47,435.68

Finding the Fourth Proportional to 86,933.44, 130,347.78 and 47,435.68

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Solution

The fourth proportional to 86,933.44, 130,347.78 and 47,435.68 is: 71,124.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,933.44 : 130,347.78 = 47,435.68 : x
  2. Step 2: Convert to fraction form
    86,933.44/130,347.78 = 47,435.68/x
  3. Step 3: Cross multiply
    86,933.44x = 130,347.78 × 47,435.68
  4. Step 4: Simplify right side
    86,933.44x = 6,183,135,580.79
  5. Step 5: Solve for x
    x = 6,183,135,580.79/86,933.44
  6. Step 6: Final answer
    x = 71,124.94

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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.