Home / 57,512.56-86,276.40-20,073.28

Finding the Fourth Proportional to 57,512.56, 86,276.40 and 20,073.28

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Solution

The fourth proportional to 57,512.56, 86,276.40 and 20,073.28 is: 30,112.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,512.56 : 86,276.40 = 20,073.28 : x
  2. Step 2: Convert to fraction form
    57,512.56/86,276.40 = 20,073.28/x
  3. Step 3: Cross multiply
    57,512.56x = 86,276.40 × 20,073.28
  4. Step 4: Simplify right side
    57,512.56x = 1,731,850,334.59
  5. Step 5: Solve for x
    x = 1,731,850,334.59/57,512.56
  6. Step 6: Final answer
    x = 30,112.56

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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.