Home / 52,181.53-78,270.75-45,140.75

Finding the Fourth Proportional to 52,181.53, 78,270.75 and 45,140.75

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Solution

The fourth proportional to 52,181.53, 78,270.75 and 45,140.75 is: 67,709.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,181.53 : 78,270.75 = 45,140.75 : x
  2. Step 2: Convert to fraction form
    52,181.53/78,270.75 = 45,140.75/x
  3. Step 3: Cross multiply
    52,181.53x = 78,270.75 × 45,140.75
  4. Step 4: Simplify right side
    52,181.53x = 3,533,200,358.06
  5. Step 5: Solve for x
    x = 3,533,200,358.06/52,181.53
  6. Step 6: Final answer
    x = 67,709.79

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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.