Home / 42,751.62-64,127.34-11,161.56

Finding the Fourth Proportional to 42,751.62, 64,127.34 and 11,161.56

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Solution

The fourth proportional to 42,751.62, 64,127.34 and 11,161.56 is: 16,742.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,751.62 : 64,127.34 = 11,161.56 : x
  2. Step 2: Convert to fraction form
    42,751.62/64,127.34 = 11,161.56/x
  3. Step 3: Cross multiply
    42,751.62x = 64,127.34 × 11,161.56
  4. Step 4: Simplify right side
    42,751.62x = 715,761,153.05
  5. Step 5: Solve for x
    x = 715,761,153.05/42,751.62
  6. Step 6: Final answer
    x = 16,742.32

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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.