Home / 55,078.92-76,008.65-31,205.54

Finding the Fourth Proportional to 55,078.92, 76,008.65 and 31,205.54

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Solution

The fourth proportional to 55,078.92, 76,008.65 and 31,205.54 is: 43,063.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,078.92 : 76,008.65 = 31,205.54 : x
  2. Step 2: Convert to fraction form
    55,078.92/76,008.65 = 31,205.54/x
  3. Step 3: Cross multiply
    55,078.92x = 76,008.65 × 31,205.54
  4. Step 4: Simplify right side
    55,078.92x = 2,371,891,001.91
  5. Step 5: Solve for x
    x = 2,371,891,001.91/55,078.92
  6. Step 6: Final answer
    x = 43,063.50

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1.5x scale

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.