Home / 39,519.76-54,590.52-31,618.48

Finding the Fourth Proportional to 39,519.76, 54,590.52 and 31,618.48

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Solution

The fourth proportional to 39,519.76, 54,590.52 and 31,618.48 is: 43,676.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,519.76 : 54,590.52 = 31,618.48 : x
  2. Step 2: Convert to fraction form
    39,519.76/54,590.52 = 31,618.48/x
  3. Step 3: Cross multiply
    39,519.76x = 54,590.52 × 31,618.48
  4. Step 4: Simplify right side
    39,519.76x = 1,726,069,264.81
  5. Step 5: Solve for x
    x = 1,726,069,264.81/39,519.76
  6. Step 6: Final answer
    x = 43,676.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.