Home / 57,801.44-79,831.80-38,905.76

Finding the Fourth Proportional to 57,801.44, 79,831.80 and 38,905.76

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Solution

The fourth proportional to 57,801.44, 79,831.80 and 38,905.76 is: 53,734.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,801.44 : 79,831.80 = 38,905.76 : x
  2. Step 2: Convert to fraction form
    57,801.44/79,831.80 = 38,905.76/x
  3. Step 3: Cross multiply
    57,801.44x = 79,831.80 × 38,905.76
  4. Step 4: Simplify right side
    57,801.44x = 3,105,916,851.17
  5. Step 5: Solve for x
    x = 3,105,916,851.17/57,801.44
  6. Step 6: Final answer
    x = 53,734.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.