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Finding the Fourth Proportional to 85,600.62, 118,125.63 and 47,361.78

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Solution

The fourth proportional to 85,600.62, 118,125.63 and 47,361.78 is: 65,357.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,600.62 : 118,125.63 = 47,361.78 : x
  2. Step 2: Convert to fraction form
    85,600.62/118,125.63 = 47,361.78/x
  3. Step 3: Cross multiply
    85,600.62x = 118,125.63 × 47,361.78
  4. Step 4: Simplify right side
    85,600.62x = 5,594,640,100.42
  5. Step 5: Solve for x
    x = 5,594,640,100.42/85,600.62
  6. Step 6: Final answer
    x = 65,357.47

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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.