Home / 72,566.30-108,890.91-28,187.28

Finding the Fourth Proportional to 72,566.30, 108,890.91 and 28,187.28

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Solution

The fourth proportional to 72,566.30, 108,890.91 and 28,187.28 is: 42,297.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,566.30 : 108,890.91 = 28,187.28 : x
  2. Step 2: Convert to fraction form
    72,566.30/108,890.91 = 28,187.28/x
  3. Step 3: Cross multiply
    72,566.30x = 108,890.91 × 28,187.28
  4. Step 4: Simplify right side
    72,566.30x = 3,069,338,569.62
  5. Step 5: Solve for x
    x = 3,069,338,569.62/72,566.30
  6. Step 6: Final answer
    x = 42,297.02

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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.