Home / 57,750.50-86,653.43-28,152.20

Finding the Fourth Proportional to 57,750.50, 86,653.43 and 28,152.20

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Solution

The fourth proportional to 57,750.50, 86,653.43 and 28,152.20 is: 42,241.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,750.50 : 86,653.43 = 28,152.20 : x
  2. Step 2: Convert to fraction form
    57,750.50/86,653.43 = 28,152.20/x
  3. Step 3: Cross multiply
    57,750.50x = 86,653.43 × 28,152.20
  4. Step 4: Simplify right side
    57,750.50x = 2,439,484,118.02
  5. Step 5: Solve for x
    x = 2,439,484,118.02/57,750.50
  6. Step 6: Final answer
    x = 42,241.79

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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.