Home / 85,348.05-117,820.17-49,531.14

Finding the Fourth Proportional to 85,348.05, 117,820.17 and 49,531.14

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Solution

The fourth proportional to 85,348.05, 117,820.17 and 49,531.14 is: 68,376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,348.05 : 117,820.17 = 49,531.14 : x
  2. Step 2: Convert to fraction form
    85,348.05/117,820.17 = 49,531.14/x
  3. Step 3: Cross multiply
    85,348.05x = 117,820.17 × 49,531.14
  4. Step 4: Simplify right side
    85,348.05x = 5,835,767,335.09
  5. Step 5: Solve for x
    x = 5,835,767,335.09/85,348.05
  6. Step 6: Final answer
    x = 68,376.11

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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.