Home / 69,981.68-96,571.23-39,763.01

Finding the Fourth Proportional to 69,981.68, 96,571.23 and 39,763.01

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Solution

The fourth proportional to 69,981.68, 96,571.23 and 39,763.01 is: 54,870.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,981.68 : 96,571.23 = 39,763.01 : x
  2. Step 2: Convert to fraction form
    69,981.68/96,571.23 = 39,763.01/x
  3. Step 3: Cross multiply
    69,981.68x = 96,571.23 × 39,763.01
  4. Step 4: Simplify right side
    69,981.68x = 3,839,962,784.20
  5. Step 5: Solve for x
    x = 3,839,962,784.20/69,981.68
  6. Step 6: Final answer
    x = 54,870.97

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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.