Home / 71,426.22-107,130.69-18,839.67

Finding the Fourth Proportional to 71,426.22, 107,130.69 and 18,839.67

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Solution

The fourth proportional to 71,426.22, 107,130.69 and 18,839.67 is: 28,257.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,426.22 : 107,130.69 = 18,839.67 : x
  2. Step 2: Convert to fraction form
    71,426.22/107,130.69 = 18,839.67/x
  3. Step 3: Cross multiply
    71,426.22x = 107,130.69 × 18,839.67
  4. Step 4: Simplify right side
    71,426.22x = 2,018,306,846.47
  5. Step 5: Solve for x
    x = 2,018,306,846.47/71,426.22
  6. Step 6: Final answer
    x = 28,257.23

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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.