Home / 57,015.40-85,537.02-40,181.25

Finding the Fourth Proportional to 57,015.40, 85,537.02 and 40,181.25

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Solution

The fourth proportional to 57,015.40, 85,537.02 and 40,181.25 is: 60,281.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,015.40 : 85,537.02 = 40,181.25 : x
  2. Step 2: Convert to fraction form
    57,015.40/85,537.02 = 40,181.25/x
  3. Step 3: Cross multiply
    57,015.40x = 85,537.02 × 40,181.25
  4. Step 4: Simplify right side
    57,015.40x = 3,436,984,384.88
  5. Step 5: Solve for x
    x = 3,436,984,384.88/57,015.40
  6. Step 6: Final answer
    x = 60,281.69

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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.