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Finding the Fourth Proportional to 70,149.57, 105,224.31 and 17,559.03

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Solution

The fourth proportional to 70,149.57, 105,224.31 and 17,559.03 is: 26,338.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,149.57 : 105,224.31 = 17,559.03 : x
  2. Step 2: Convert to fraction form
    70,149.57/105,224.31 = 17,559.03/x
  3. Step 3: Cross multiply
    70,149.57x = 105,224.31 × 17,559.03
  4. Step 4: Simplify right side
    70,149.57x = 1,847,636,816.02
  5. Step 5: Solve for x
    x = 1,847,636,816.02/70,149.57
  6. Step 6: Final answer
    x = 26,338.53

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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.