Home / 69,376.80-95,716.40-39,158.56

Finding the Fourth Proportional to 69,376.80, 95,716.40 and 39,158.56

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Solution

The fourth proportional to 69,376.80, 95,716.40 and 39,158.56 is: 54,025.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,376.80 : 95,716.40 = 39,158.56 : x
  2. Step 2: Convert to fraction form
    69,376.80/95,716.40 = 39,158.56/x
  3. Step 3: Cross multiply
    69,376.80x = 95,716.40 × 39,158.56
  4. Step 4: Simplify right side
    69,376.80x = 3,748,116,392.38
  5. Step 5: Solve for x
    x = 3,748,116,392.38/69,376.80
  6. Step 6: Final answer
    x = 54,025.50

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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.