Home / 57,218.58-85,831.64-19,782.27

Finding the Fourth Proportional to 57,218.58, 85,831.64 and 19,782.27

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Solution

The fourth proportional to 57,218.58, 85,831.64 and 19,782.27 is: 29,674.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,218.58 : 85,831.64 = 19,782.27 : x
  2. Step 2: Convert to fraction form
    57,218.58/85,831.64 = 19,782.27/x
  3. Step 3: Cross multiply
    57,218.58x = 85,831.64 × 19,782.27
  4. Step 4: Simplify right side
    57,218.58x = 1,697,944,677.02
  5. Step 5: Solve for x
    x = 1,697,944,677.02/57,218.58
  6. Step 6: Final answer
    x = 29,674.71

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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.