Home / 79,218.57-118,831.43-25,913.59

Finding the Fourth Proportional to 79,218.57, 118,831.43 and 25,913.59

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Solution

The fourth proportional to 79,218.57, 118,831.43 and 25,913.59 is: 38,871.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,218.57 : 118,831.43 = 25,913.59 : x
  2. Step 2: Convert to fraction form
    79,218.57/118,831.43 = 25,913.59/x
  3. Step 3: Cross multiply
    79,218.57x = 118,831.43 × 25,913.59
  4. Step 4: Simplify right side
    79,218.57x = 3,079,348,567.32
  5. Step 5: Solve for x
    x = 3,079,348,567.32/79,218.57
  6. Step 6: Final answer
    x = 38,871.55

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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.