Home / 57,218.79-85,831.97-19,782.48

Finding the Fourth Proportional to 57,218.79, 85,831.97 and 19,782.48

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Solution

The fourth proportional to 57,218.79, 85,831.97 and 19,782.48 is: 29,675.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,218.79 : 85,831.97 = 19,782.48 : x
  2. Step 2: Convert to fraction form
    57,218.79/85,831.97 = 19,782.48/x
  3. Step 3: Cross multiply
    57,218.79x = 85,831.97 × 19,782.48
  4. Step 4: Simplify right side
    57,218.79x = 1,697,969,130.97
  5. Step 5: Solve for x
    x = 1,697,969,130.97/57,218.79
  6. Step 6: Final answer
    x = 29,675.03

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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.