Home / 73,005.05-109,508.45-28,652.69

Finding the Fourth Proportional to 73,005.05, 109,508.45 and 28,652.69

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Solution

The fourth proportional to 73,005.05, 109,508.45 and 28,652.69 is: 42,979.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,005.05 : 109,508.45 = 28,652.69 : x
  2. Step 2: Convert to fraction form
    73,005.05/109,508.45 = 28,652.69/x
  3. Step 3: Cross multiply
    73,005.05x = 109,508.45 × 28,652.69
  4. Step 4: Simplify right side
    73,005.05x = 3,137,710,979.42
  5. Step 5: Solve for x
    x = 3,137,710,979.42/73,005.05
  6. Step 6: Final answer
    x = 42,979.37

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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.