Home / 51,369.65-77,069.24-21,378.05

Finding the Fourth Proportional to 51,369.65, 77,069.24 and 21,378.05

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Solution

The fourth proportional to 51,369.65, 77,069.24 and 21,378.05 is: 32,073.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,369.65 : 77,069.24 = 21,378.05 : x
  2. Step 2: Convert to fraction form
    51,369.65/77,069.24 = 21,378.05/x
  3. Step 3: Cross multiply
    51,369.65x = 77,069.24 × 21,378.05
  4. Step 4: Simplify right side
    51,369.65x = 1,647,590,066.18
  5. Step 5: Solve for x
    x = 1,647,590,066.18/51,369.65
  6. Step 6: Final answer
    x = 32,073.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.