Home / 84,778.38-127,089.81-29,335.50

Finding the Fourth Proportional to 84,778.38, 127,089.81 and 29,335.50

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Solution

The fourth proportional to 84,778.38, 127,089.81 and 29,335.50 is: 43,976.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,778.38 : 127,089.81 = 29,335.50 : x
  2. Step 2: Convert to fraction form
    84,778.38/127,089.81 = 29,335.50/x
  3. Step 3: Cross multiply
    84,778.38x = 127,089.81 × 29,335.50
  4. Step 4: Simplify right side
    84,778.38x = 3,728,243,121.26
  5. Step 5: Solve for x
    x = 3,728,243,121.26/84,778.38
  6. Step 6: Final answer
    x = 43,976.34

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1.5x scale

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.