Home / 71,998.56-99,357.44-40,167.36

Finding the Fourth Proportional to 71,998.56, 99,357.44 and 40,167.36

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Solution

The fourth proportional to 71,998.56, 99,357.44 and 40,167.36 is: 55,430.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,998.56 : 99,357.44 = 40,167.36 : x
  2. Step 2: Convert to fraction form
    71,998.56/99,357.44 = 40,167.36/x
  3. Step 3: Cross multiply
    71,998.56x = 99,357.44 × 40,167.36
  4. Step 4: Simplify right side
    71,998.56x = 3,990,925,860.32
  5. Step 5: Solve for x
    x = 3,990,925,860.32/71,998.56
  6. Step 6: Final answer
    x = 55,430.63

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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.