Home / 45,538.16-68,315.84-20,577.92

Finding the Fourth Proportional to 45,538.16, 68,315.84 and 20,577.92

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Solution

The fourth proportional to 45,538.16, 68,315.84 and 20,577.92 is: 30,870.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,538.16 : 68,315.84 = 20,577.92 : x
  2. Step 2: Convert to fraction form
    45,538.16/68,315.84 = 20,577.92/x
  3. Step 3: Cross multiply
    45,538.16x = 68,315.84 × 20,577.92
  4. Step 4: Simplify right side
    45,538.16x = 1,405,797,890.25
  5. Step 5: Solve for x
    x = 1,405,797,890.25/45,538.16
  6. Step 6: Final answer
    x = 30,870.77

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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.