Home / 52,760.28-79,140.93-20,742.60

Finding the Fourth Proportional to 52,760.28, 79,140.93 and 20,742.60

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Solution

The fourth proportional to 52,760.28, 79,140.93 and 20,742.60 is: 31,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,760.28 : 79,140.93 = 20,742.60 : x
  2. Step 2: Convert to fraction form
    52,760.28/79,140.93 = 20,742.60/x
  3. Step 3: Cross multiply
    52,760.28x = 79,140.93 × 20,742.60
  4. Step 4: Simplify right side
    52,760.28x = 1,641,588,654.62
  5. Step 5: Solve for x
    x = 1,641,588,654.62/52,760.28
  6. Step 6: Final answer
    x = 31,114.10

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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.