Home / 57,018.12-78,679.56-33,144.48

Finding the Fourth Proportional to 57,018.12, 78,679.56 and 33,144.48

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Solution

The fourth proportional to 57,018.12, 78,679.56 and 33,144.48 is: 45,736.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,018.12 : 78,679.56 = 33,144.48 : x
  2. Step 2: Convert to fraction form
    57,018.12/78,679.56 = 33,144.48/x
  3. Step 3: Cross multiply
    57,018.12x = 78,679.56 × 33,144.48
  4. Step 4: Simplify right side
    57,018.12x = 2,607,793,102.83
  5. Step 5: Solve for x
    x = 2,607,793,102.83/57,018.12
  6. Step 6: Final answer
    x = 45,736.22

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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.