Home / 45,508.08-68,271.40-19,212.80

Finding the Fourth Proportional to 45,508.08, 68,271.40 and 19,212.80

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Solution

The fourth proportional to 45,508.08, 68,271.40 and 19,212.80 is: 28,823.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,508.08 : 68,271.40 = 19,212.80 : x
  2. Step 2: Convert to fraction form
    45,508.08/68,271.40 = 19,212.80/x
  3. Step 3: Cross multiply
    45,508.08x = 68,271.40 × 19,212.80
  4. Step 4: Simplify right side
    45,508.08x = 1,311,684,753.92
  5. Step 5: Solve for x
    x = 1,311,684,753.92/45,508.08
  6. Step 6: Final answer
    x = 28,823.12

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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.