Home / 55,729.63-83,600.79-20,207.68

Finding the Fourth Proportional to 55,729.63, 83,600.79 and 20,207.68

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Solution

The fourth proportional to 55,729.63, 83,600.79 and 20,207.68 is: 30,313.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,729.63 : 83,600.79 = 20,207.68 : x
  2. Step 2: Convert to fraction form
    55,729.63/83,600.79 = 20,207.68/x
  3. Step 3: Cross multiply
    55,729.63x = 83,600.79 × 20,207.68
  4. Step 4: Simplify right side
    55,729.63x = 1,689,377,597.53
  5. Step 5: Solve for x
    x = 1,689,377,597.53/55,729.63
  6. Step 6: Final answer
    x = 30,313.82

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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.