Home / 71,425.22-107,136.63-17,390.47

Finding the Fourth Proportional to 71,425.22, 107,136.63 and 17,390.47

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Solution

The fourth proportional to 71,425.22, 107,136.63 and 17,390.47 is: 26,085.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,425.22 : 107,136.63 = 17,390.47 : x
  2. Step 2: Convert to fraction form
    71,425.22/107,136.63 = 17,390.47/x
  3. Step 3: Cross multiply
    71,425.22x = 107,136.63 × 17,390.47
  4. Step 4: Simplify right side
    71,425.22x = 1,863,156,349.92
  5. Step 5: Solve for x
    x = 1,863,156,349.92/71,425.22
  6. Step 6: Final answer
    x = 26,085.41

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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.