Home / 57,220.80-85,831.36-17,783.68

Finding the Fourth Proportional to 57,220.80, 85,831.36 and 17,783.68

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Solution

The fourth proportional to 57,220.80, 85,831.36 and 17,783.68 is: 26,675.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,220.80 : 85,831.36 = 17,783.68 : x
  2. Step 2: Convert to fraction form
    57,220.80/85,831.36 = 17,783.68/x
  3. Step 3: Cross multiply
    57,220.80x = 85,831.36 × 17,783.68
  4. Step 4: Simplify right side
    57,220.80x = 1,526,397,440.20
  5. Step 5: Solve for x
    x = 1,526,397,440.20/57,220.80
  6. Step 6: Final answer
    x = 26,675.57

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Similar ratio
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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.