Home / 45,157.12-67,758.92-21,491.48

Finding the Fourth Proportional to 45,157.12, 67,758.92 and 21,491.48

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Solution

The fourth proportional to 45,157.12, 67,758.92 and 21,491.48 is: 32,248.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,157.12 : 67,758.92 = 21,491.48 : x
  2. Step 2: Convert to fraction form
    45,157.12/67,758.92 = 21,491.48/x
  3. Step 3: Cross multiply
    45,157.12x = 67,758.92 × 21,491.48
  4. Step 4: Simplify right side
    45,157.12x = 1,456,239,474.00
  5. Step 5: Solve for x
    x = 1,456,239,474.00/45,157.12
  6. Step 6: Final answer
    x = 32,248.28

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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.