Home / 69,430.40-104,145.60-16,839.80

Finding the Fourth Proportional to 69,430.40, 104,145.60 and 16,839.80

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Solution

The fourth proportional to 69,430.40, 104,145.60 and 16,839.80 is: 25,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,430.40 : 104,145.60 = 16,839.80 : x
  2. Step 2: Convert to fraction form
    69,430.40/104,145.60 = 16,839.80/x
  3. Step 3: Cross multiply
    69,430.40x = 104,145.60 × 16,839.80
  4. Step 4: Simplify right side
    69,430.40x = 1,753,791,074.88
  5. Step 5: Solve for x
    x = 1,753,791,074.88/69,430.40
  6. Step 6: Final answer
    x = 25,259.70

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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.