Home / 47,172.26-70,782.72-20,895.56

Finding the Fourth Proportional to 47,172.26, 70,782.72 and 20,895.56

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Solution

The fourth proportional to 47,172.26, 70,782.72 and 20,895.56 is: 31,354.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,172.26 : 70,782.72 = 20,895.56 : x
  2. Step 2: Convert to fraction form
    47,172.26/70,782.72 = 20,895.56/x
  3. Step 3: Cross multiply
    47,172.26x = 70,782.72 × 20,895.56
  4. Step 4: Simplify right side
    47,172.26x = 1,479,044,572.72
  5. Step 5: Solve for x
    x = 1,479,044,572.72/47,172.26
  6. Step 6: Final answer
    x = 31,354.12

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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.