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Finding the Fourth Proportional to 85,954.16, 118,614.86 and 47,711.48

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Solution

The fourth proportional to 85,954.16, 118,614.86 and 47,711.48 is: 65,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,954.16 : 118,614.86 = 47,711.48 : x
  2. Step 2: Convert to fraction form
    85,954.16/118,614.86 = 47,711.48/x
  3. Step 3: Cross multiply
    85,954.16x = 118,614.86 × 47,711.48
  4. Step 4: Simplify right side
    85,954.16x = 5,659,290,520.59
  5. Step 5: Solve for x
    x = 5,659,290,520.59/85,954.16
  6. Step 6: Final answer
    x = 65,840.80

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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.