Home / 77,243.72-106,571.55-43,247.20

Finding the Fourth Proportional to 77,243.72, 106,571.55 and 43,247.20

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Solution

The fourth proportional to 77,243.72, 106,571.55 and 43,247.20 is: 59,667.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,243.72 : 106,571.55 = 43,247.20 : x
  2. Step 2: Convert to fraction form
    77,243.72/106,571.55 = 43,247.20/x
  3. Step 3: Cross multiply
    77,243.72x = 106,571.55 × 43,247.20
  4. Step 4: Simplify right side
    77,243.72x = 4,608,921,137.16
  5. Step 5: Solve for x
    x = 4,608,921,137.16/77,243.72
  6. Step 6: Final answer
    x = 59,667.26

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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.