Home / 47,155.68-70,745.40-13,876.02

Finding the Fourth Proportional to 47,155.68, 70,745.40 and 13,876.02

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Solution

The fourth proportional to 47,155.68, 70,745.40 and 13,876.02 is: 20,817.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,155.68 : 70,745.40 = 13,876.02 : x
  2. Step 2: Convert to fraction form
    47,155.68/70,745.40 = 13,876.02/x
  3. Step 3: Cross multiply
    47,155.68x = 70,745.40 × 13,876.02
  4. Step 4: Simplify right side
    47,155.68x = 981,664,585.31
  5. Step 5: Solve for x
    x = 981,664,585.31/47,155.68
  6. Step 6: Final answer
    x = 20,817.53

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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.