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Finding the Fourth Proportional to 85,983.75, 118,657.58 and 48,258

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Solution

The fourth proportional to 85,983.75, 118,657.58 and 48,258 is: 66,596.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,983.75 : 118,657.58 = 48,258 : x
  2. Step 2: Convert to fraction form
    85,983.75/118,657.58 = 48,258/x
  3. Step 3: Cross multiply
    85,983.75x = 118,657.58 × 48,258
  4. Step 4: Simplify right side
    85,983.75x = 5,726,177,254.35
  5. Step 5: Solve for x
    x = 5,726,177,254.35/85,983.75
  6. Step 6: Final answer
    x = 66,596.04

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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.