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Finding the Fourth Proportional to 85,959.78, 118,622.57 and 47,717.07

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Solution

The fourth proportional to 85,959.78, 118,622.57 and 47,717.07 is: 65,848.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,959.78 : 118,622.57 = 47,717.07 : x
  2. Step 2: Convert to fraction form
    85,959.78/118,622.57 = 47,717.07/x
  3. Step 3: Cross multiply
    85,959.78x = 118,622.57 × 47,717.07
  4. Step 4: Simplify right side
    85,959.78x = 5,660,321,237.68
  5. Step 5: Solve for x
    x = 5,660,321,237.68/85,959.78
  6. Step 6: Final answer
    x = 65,848.48

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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.