Home / 47,756.90-71,610.74-21,439.10

Finding the Fourth Proportional to 47,756.90, 71,610.74 and 21,439.10

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Solution

The fourth proportional to 47,756.90, 71,610.74 and 21,439.10 is: 32,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,756.90 : 71,610.74 = 21,439.10 : x
  2. Step 2: Convert to fraction form
    47,756.90/71,610.74 = 21,439.10/x
  3. Step 3: Cross multiply
    47,756.90x = 71,610.74 × 21,439.10
  4. Step 4: Simplify right side
    47,756.90x = 1,535,269,815.93
  5. Step 5: Solve for x
    x = 1,535,269,815.93/47,756.90
  6. Step 6: Final answer
    x = 32,147.60

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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.