Home / 82,778.30-114,220.31-48,782.17

Finding the Fourth Proportional to 82,778.30, 114,220.31 and 48,782.17

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Solution

The fourth proportional to 82,778.30, 114,220.31 and 48,782.17 is: 67,311.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,778.30 : 114,220.31 = 48,782.17 : x
  2. Step 2: Convert to fraction form
    82,778.30/114,220.31 = 48,782.17/x
  3. Step 3: Cross multiply
    82,778.30x = 114,220.31 × 48,782.17
  4. Step 4: Simplify right side
    82,778.30x = 5,571,914,753.14
  5. Step 5: Solve for x
    x = 5,571,914,753.14/82,778.30
  6. Step 6: Final answer
    x = 67,311.30

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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.