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Finding the Fourth Proportional to 85,984.75, 118,658.96 and 48,259

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Solution

The fourth proportional to 85,984.75, 118,658.96 and 48,259 is: 66,597.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,984.75 : 118,658.96 = 48,259 : x
  2. Step 2: Convert to fraction form
    85,984.75/118,658.96 = 48,259/x
  3. Step 3: Cross multiply
    85,984.75x = 118,658.96 × 48,259
  4. Step 4: Simplify right side
    85,984.75x = 5,726,362,750.64
  5. Step 5: Solve for x
    x = 5,726,362,750.64/85,984.75
  6. Step 6: Final answer
    x = 66,597.42

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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.