Home / 77,972.56-107,571.90-43,973.20

Finding the Fourth Proportional to 77,972.56, 107,571.90 and 43,973.20

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Solution

The fourth proportional to 77,972.56, 107,571.90 and 43,973.20 is: 60,665.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,972.56 : 107,571.90 = 43,973.20 : x
  2. Step 2: Convert to fraction form
    77,972.56/107,571.90 = 43,973.20/x
  3. Step 3: Cross multiply
    77,972.56x = 107,571.90 × 43,973.20
  4. Step 4: Simplify right side
    77,972.56x = 4,730,280,673.08
  5. Step 5: Solve for x
    x = 4,730,280,673.08/77,972.56
  6. Step 6: Final answer
    x = 60,665.97

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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.