Home / 85,990.29-118,660.09-48,257.25

Finding the Fourth Proportional to 85,990.29, 118,660.09 and 48,257.25

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Solution

The fourth proportional to 85,990.29, 118,660.09 and 48,257.25 is: 66,591.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,990.29 : 118,660.09 = 48,257.25 : x
  2. Step 2: Convert to fraction form
    85,990.29/118,660.09 = 48,257.25/x
  3. Step 3: Cross multiply
    85,990.29x = 118,660.09 × 48,257.25
  4. Step 4: Simplify right side
    85,990.29x = 5,726,209,628.15
  5. Step 5: Solve for x
    x = 5,726,209,628.15/85,990.29
  6. Step 6: Final answer
    x = 66,591.35

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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.