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Finding the Fourth Proportional to 85,633.97, 118,172.43 and 47,395.08

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Solution

The fourth proportional to 85,633.97, 118,172.43 and 47,395.08 is: 65,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,633.97 : 118,172.43 = 47,395.08 : x
  2. Step 2: Convert to fraction form
    85,633.97/118,172.43 = 47,395.08/x
  3. Step 3: Cross multiply
    85,633.97x = 118,172.43 × 47,395.08
  4. Step 4: Simplify right side
    85,633.97x = 5,600,791,773.64
  5. Step 5: Solve for x
    x = 5,600,791,773.64/85,633.97
  6. Step 6: Final answer
    x = 65,403.86

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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.