Home / 71,688.40-107,529.49-21,767.37

Finding the Fourth Proportional to 71,688.40, 107,529.49 and 21,767.37

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Solution

The fourth proportional to 71,688.40, 107,529.49 and 21,767.37 is: 32,650.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,688.40 : 107,529.49 = 21,767.37 : x
  2. Step 2: Convert to fraction form
    71,688.40/107,529.49 = 21,767.37/x
  3. Step 3: Cross multiply
    71,688.40x = 107,529.49 × 21,767.37
  4. Step 4: Simplify right side
    71,688.40x = 2,340,634,194.74
  5. Step 5: Solve for x
    x = 2,340,634,194.74/71,688.40
  6. Step 6: Final answer
    x = 32,650.11

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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.