Home / 69,613.40-104,420.10-20,365.40

Finding the Fourth Proportional to 69,613.40, 104,420.10 and 20,365.40

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Solution

The fourth proportional to 69,613.40, 104,420.10 and 20,365.40 is: 30,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,613.40 : 104,420.10 = 20,365.40 : x
  2. Step 2: Convert to fraction form
    69,613.40/104,420.10 = 20,365.40/x
  3. Step 3: Cross multiply
    69,613.40x = 104,420.10 × 20,365.40
  4. Step 4: Simplify right side
    69,613.40x = 2,126,557,104.54
  5. Step 5: Solve for x
    x = 2,126,557,104.54/69,613.40
  6. Step 6: Final answer
    x = 30,548.10

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1.5x scale

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.