Home / 85,839.44-128,787.17-41,471.28

Finding the Fourth Proportional to 85,839.44, 128,787.17 and 41,471.28

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Solution

The fourth proportional to 85,839.44, 128,787.17 and 41,471.28 is: 62,220.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,839.44 : 128,787.17 = 41,471.28 : x
  2. Step 2: Convert to fraction form
    85,839.44/128,787.17 = 41,471.28/x
  3. Step 3: Cross multiply
    85,839.44x = 128,787.17 × 41,471.28
  4. Step 4: Simplify right side
    85,839.44x = 5,340,968,580.12
  5. Step 5: Solve for x
    x = 5,340,968,580.12/85,839.44
  6. Step 6: Final answer
    x = 62,220.45

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1.5x scale

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.