Home / 50,709.24-76,072.05-21,130.05

Finding the Fourth Proportional to 50,709.24, 76,072.05 and 21,130.05

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Solution

The fourth proportional to 50,709.24, 76,072.05 and 21,130.05 is: 31,698.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,709.24 : 76,072.05 = 21,130.05 : x
  2. Step 2: Convert to fraction form
    50,709.24/76,072.05 = 21,130.05/x
  3. Step 3: Cross multiply
    50,709.24x = 76,072.05 × 21,130.05
  4. Step 4: Simplify right side
    50,709.24x = 1,607,406,220.10
  5. Step 5: Solve for x
    x = 1,607,406,220.10/50,709.24
  6. Step 6: Final answer
    x = 31,698.49

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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.