Home / 66,500.87-91,771.16-42,627.54

Finding the Fourth Proportional to 66,500.87, 91,771.16 and 42,627.54

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Solution

The fourth proportional to 66,500.87, 91,771.16 and 42,627.54 is: 58,825.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,500.87 : 91,771.16 = 42,627.54 : x
  2. Step 2: Convert to fraction form
    66,500.87/91,771.16 = 42,627.54/x
  3. Step 3: Cross multiply
    66,500.87x = 91,771.16 × 42,627.54
  4. Step 4: Simplify right side
    66,500.87x = 3,911,978,580.61
  5. Step 5: Solve for x
    x = 3,911,978,580.61/66,500.87
  6. Step 6: Final answer
    x = 58,825.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.