Home / 71,764.81-99,034.73-39,933.16

Finding the Fourth Proportional to 71,764.81, 99,034.73 and 39,933.16

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Solution

The fourth proportional to 71,764.81, 99,034.73 and 39,933.16 is: 55,107.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,764.81 : 99,034.73 = 39,933.16 : x
  2. Step 2: Convert to fraction form
    71,764.81/99,034.73 = 39,933.16/x
  3. Step 3: Cross multiply
    71,764.81x = 99,034.73 × 39,933.16
  4. Step 4: Simplify right side
    71,764.81x = 3,954,769,518.98
  5. Step 5: Solve for x
    x = 3,954,769,518.98/71,764.81
  6. Step 6: Final answer
    x = 55,107.36

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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.