Home / 54,271.08-81,421.20-19,235.52

Finding the Fourth Proportional to 54,271.08, 81,421.20 and 19,235.52

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Solution

The fourth proportional to 54,271.08, 81,421.20 and 19,235.52 is: 28,858.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,271.08 : 81,421.20 = 19,235.52 : x
  2. Step 2: Convert to fraction form
    54,271.08/81,421.20 = 19,235.52/x
  3. Step 3: Cross multiply
    54,271.08x = 81,421.20 × 19,235.52
  4. Step 4: Simplify right side
    54,271.08x = 1,566,179,121.02
  5. Step 5: Solve for x
    x = 1,566,179,121.02/54,271.08
  6. Step 6: Final answer
    x = 28,858.45

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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.