Home / 55,071.54-82,585.62-19,519.20

Finding the Fourth Proportional to 55,071.54, 82,585.62 and 19,519.20

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Solution

The fourth proportional to 55,071.54, 82,585.62 and 19,519.20 is: 29,271.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,071.54 : 82,585.62 = 19,519.20 : x
  2. Step 2: Convert to fraction form
    55,071.54/82,585.62 = 19,519.20/x
  3. Step 3: Cross multiply
    55,071.54x = 82,585.62 × 19,519.20
  4. Step 4: Simplify right side
    55,071.54x = 1,612,005,233.90
  5. Step 5: Solve for x
    x = 1,612,005,233.90/55,071.54
  6. Step 6: Final answer
    x = 29,271.11

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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.