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Finding the Fourth Proportional to 85,672.68, 118,167.30 and 52,140.84

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Solution

The fourth proportional to 85,672.68, 118,167.30 and 52,140.84 is: 71,917.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,672.68 : 118,167.30 = 52,140.84 : x
  2. Step 2: Convert to fraction form
    85,672.68/118,167.30 = 52,140.84/x
  3. Step 3: Cross multiply
    85,672.68x = 118,167.30 × 52,140.84
  4. Step 4: Simplify right side
    85,672.68x = 6,161,342,282.53
  5. Step 5: Solve for x
    x = 6,161,342,282.53/85,672.68
  6. Step 6: Final answer
    x = 71,917.24

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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.