Home / 47,091.92-70,638.44-13,812.65

Finding the Fourth Proportional to 47,091.92, 70,638.44 and 13,812.65

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Solution

The fourth proportional to 47,091.92, 70,638.44 and 13,812.65 is: 20,719.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,091.92 : 70,638.44 = 13,812.65 : x
  2. Step 2: Convert to fraction form
    47,091.92/70,638.44 = 13,812.65/x
  3. Step 3: Cross multiply
    47,091.92x = 70,638.44 × 13,812.65
  4. Step 4: Simplify right side
    47,091.92x = 975,704,155.80
  5. Step 5: Solve for x
    x = 975,704,155.80/47,091.92
  6. Step 6: Final answer
    x = 20,719.14

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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.