Home / 57,378.72-86,048.73-21,831.60

Finding the Fourth Proportional to 57,378.72, 86,048.73 and 21,831.60

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Solution

The fourth proportional to 57,378.72, 86,048.73 and 21,831.60 is: 32,740.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,378.72 : 86,048.73 = 21,831.60 : x
  2. Step 2: Convert to fraction form
    57,378.72/86,048.73 = 21,831.60/x
  3. Step 3: Cross multiply
    57,378.72x = 86,048.73 × 21,831.60
  4. Step 4: Simplify right side
    57,378.72x = 1,878,581,453.87
  5. Step 5: Solve for x
    x = 1,878,581,453.87/57,378.72
  6. Step 6: Final answer
    x = 32,740.04

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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.