Home / 82,842.45-124,328.48-38,474.70

Finding the Fourth Proportional to 82,842.45, 124,328.48 and 38,474.70

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Solution

The fourth proportional to 82,842.45, 124,328.48 and 38,474.70 is: 57,742.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,842.45 : 124,328.48 = 38,474.70 : x
  2. Step 2: Convert to fraction form
    82,842.45/124,328.48 = 38,474.70/x
  3. Step 3: Cross multiply
    82,842.45x = 124,328.48 × 38,474.70
  4. Step 4: Simplify right side
    82,842.45x = 4,783,500,777.08
  5. Step 5: Solve for x
    x = 4,783,500,777.08/82,842.45
  6. Step 6: Final answer
    x = 57,742.15

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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.