Home / 72,205.10-108,291.45-47,419.10

Finding the Fourth Proportional to 72,205.10, 108,291.45 and 47,419.10

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Solution

The fourth proportional to 72,205.10, 108,291.45 and 47,419.10 is: 71,118.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,205.10 : 108,291.45 = 47,419.10 : x
  2. Step 2: Convert to fraction form
    72,205.10/108,291.45 = 47,419.10/x
  3. Step 3: Cross multiply
    72,205.10x = 108,291.45 × 47,419.10
  4. Step 4: Simplify right side
    72,205.10x = 5,135,083,096.70
  5. Step 5: Solve for x
    x = 5,135,083,096.70/72,205.10
  6. Step 6: Final answer
    x = 71,118.01

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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.