Home / 82,207.32-113,385.06-49,941.78

Finding the Fourth Proportional to 82,207.32, 113,385.06 and 49,941.78

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Solution

The fourth proportional to 82,207.32, 113,385.06 and 49,941.78 is: 68,882.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,207.32 : 113,385.06 = 49,941.78 : x
  2. Step 2: Convert to fraction form
    82,207.32/113,385.06 = 49,941.78/x
  3. Step 3: Cross multiply
    82,207.32x = 113,385.06 × 49,941.78
  4. Step 4: Simplify right side
    82,207.32x = 5,662,651,721.81
  5. Step 5: Solve for x
    x = 5,662,651,721.81/82,207.32
  6. Step 6: Final answer
    x = 68,882.57

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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.