Home / 85,986.75-118,661.72-48,261

Finding the Fourth Proportional to 85,986.75, 118,661.72 and 48,261

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Solution

The fourth proportional to 85,986.75, 118,661.72 and 48,261 is: 66,600.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,986.75 : 118,661.72 = 48,261 : x
  2. Step 2: Convert to fraction form
    85,986.75/118,661.72 = 48,261/x
  3. Step 3: Cross multiply
    85,986.75x = 118,661.72 × 48,261
  4. Step 4: Simplify right side
    85,986.75x = 5,726,733,027.62
  5. Step 5: Solve for x
    x = 5,726,733,027.62/85,986.75
  6. Step 6: Final answer
    x = 66,600.18

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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.