Home / 61,105.56-91,672.68-18,983.46

Finding the Fourth Proportional to 61,105.56, 91,672.68 and 18,983.46

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Solution

The fourth proportional to 61,105.56, 91,672.68 and 18,983.46 is: 28,479.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,105.56 : 91,672.68 = 18,983.46 : x
  2. Step 2: Convert to fraction form
    61,105.56/91,672.68 = 18,983.46/x
  3. Step 3: Cross multiply
    61,105.56x = 91,672.68 × 18,983.46
  4. Step 4: Simplify right side
    61,105.56x = 1,740,264,653.87
  5. Step 5: Solve for x
    x = 1,740,264,653.87/61,105.56
  6. Step 6: Final answer
    x = 28,479.64

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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.