Home / 71,122.48-98,151.83-40,907.75

Finding the Fourth Proportional to 71,122.48, 98,151.83 and 40,907.75

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Solution

The fourth proportional to 71,122.48, 98,151.83 and 40,907.75 is: 56,454.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,122.48 : 98,151.83 = 40,907.75 : x
  2. Step 2: Convert to fraction form
    71,122.48/98,151.83 = 40,907.75/x
  3. Step 3: Cross multiply
    71,122.48x = 98,151.83 × 40,907.75
  4. Step 4: Simplify right side
    71,122.48x = 4,015,170,523.68
  5. Step 5: Solve for x
    x = 4,015,170,523.68/71,122.48
  6. Step 6: Final answer
    x = 56,454.31

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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.