Home / 79,854.22-119,772.01-20,685.34

Finding the Fourth Proportional to 79,854.22, 119,772.01 and 20,685.34

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Solution

The fourth proportional to 79,854.22, 119,772.01 and 20,685.34 is: 31,025.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,854.22 : 119,772.01 = 20,685.34 : x
  2. Step 2: Convert to fraction form
    79,854.22/119,772.01 = 20,685.34/x
  3. Step 3: Cross multiply
    79,854.22x = 119,772.01 × 20,685.34
  4. Step 4: Simplify right side
    79,854.22x = 2,477,524,047.05
  5. Step 5: Solve for x
    x = 2,477,524,047.05/79,854.22
  6. Step 6: Final answer
    x = 31,025.59

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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.