Home / 47,986.31-71,831.81-31,310.44

Finding the Fourth Proportional to 47,986.31, 71,831.81 and 31,310.44

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Solution

The fourth proportional to 47,986.31, 71,831.81 and 31,310.44 is: 46,869.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,986.31 : 71,831.81 = 31,310.44 : x
  2. Step 2: Convert to fraction form
    47,986.31/71,831.81 = 31,310.44/x
  3. Step 3: Cross multiply
    47,986.31x = 71,831.81 × 31,310.44
  4. Step 4: Simplify right side
    47,986.31x = 2,249,085,475.79
  5. Step 5: Solve for x
    x = 2,249,085,475.79/47,986.31
  6. Step 6: Final answer
    x = 46,869.31

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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.