Home / 53,229.80-79,831.07-15,781.12

Finding the Fourth Proportional to 53,229.80, 79,831.07 and 15,781.12

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Solution

The fourth proportional to 53,229.80, 79,831.07 and 15,781.12 is: 23,667.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,229.80 : 79,831.07 = 15,781.12 : x
  2. Step 2: Convert to fraction form
    53,229.80/79,831.07 = 15,781.12/x
  3. Step 3: Cross multiply
    53,229.80x = 79,831.07 × 15,781.12
  4. Step 4: Simplify right side
    53,229.80x = 1,259,823,695.40
  5. Step 5: Solve for x
    x = 1,259,823,695.40/53,229.80
  6. Step 6: Final answer
    x = 23,667.64

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1.5x scale

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.