Home / 82,398.36-123,565.56-28,352.77

Finding the Fourth Proportional to 82,398.36, 123,565.56 and 28,352.77

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Solution

The fourth proportional to 82,398.36, 123,565.56 and 28,352.77 is: 42,518.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,398.36 : 123,565.56 = 28,352.77 : x
  2. Step 2: Convert to fraction form
    82,398.36/123,565.56 = 28,352.77/x
  3. Step 3: Cross multiply
    82,398.36x = 123,565.56 × 28,352.77
  4. Step 4: Simplify right side
    82,398.36x = 3,503,425,902.60
  5. Step 5: Solve for x
    x = 3,503,425,902.60/82,398.36
  6. Step 6: Final answer
    x = 42,518.15

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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.