Home / 57,724.28-86,586.43-42,029.20

Finding the Fourth Proportional to 57,724.28, 86,586.43 and 42,029.20

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Solution

The fourth proportional to 57,724.28, 86,586.43 and 42,029.20 is: 63,043.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,724.28 : 86,586.43 = 42,029.20 : x
  2. Step 2: Convert to fraction form
    57,724.28/86,586.43 = 42,029.20/x
  3. Step 3: Cross multiply
    57,724.28x = 86,586.43 × 42,029.20
  4. Step 4: Simplify right side
    57,724.28x = 3,639,158,383.76
  5. Step 5: Solve for x
    x = 3,639,158,383.76/57,724.28
  6. Step 6: Final answer
    x = 63,043.81

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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.