Home / 61,667.55-85,080.44-40,147.47

Finding the Fourth Proportional to 61,667.55, 85,080.44 and 40,147.47

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Solution

The fourth proportional to 61,667.55, 85,080.44 and 40,147.47 is: 55,389.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,667.55 : 85,080.44 = 40,147.47 : x
  2. Step 2: Convert to fraction form
    61,667.55/85,080.44 = 40,147.47/x
  3. Step 3: Cross multiply
    61,667.55x = 85,080.44 × 40,147.47
  4. Step 4: Simplify right side
    61,667.55x = 3,415,764,512.86
  5. Step 5: Solve for x
    x = 3,415,764,512.86/61,667.55
  6. Step 6: Final answer
    x = 55,389.98

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1.5x scale

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.