Home / 71,997.95-99,357.21-40,166.17

Finding the Fourth Proportional to 71,997.95, 99,357.21 and 40,166.17

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Solution

The fourth proportional to 71,997.95, 99,357.21 and 40,166.17 is: 55,429.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,997.95 : 99,357.21 = 40,166.17 : x
  2. Step 2: Convert to fraction form
    71,997.95/99,357.21 = 40,166.17/x
  3. Step 3: Cross multiply
    71,997.95x = 99,357.21 × 40,166.17
  4. Step 4: Simplify right side
    71,997.95x = 3,990,798,339.19
  5. Step 5: Solve for x
    x = 3,990,798,339.19/71,997.95
  6. Step 6: Final answer
    x = 55,429.33

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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.