Home / 85,071.18-127,625.22-25,905.30

Finding the Fourth Proportional to 85,071.18, 127,625.22 and 25,905.30

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Solution

The fourth proportional to 85,071.18, 127,625.22 and 25,905.30 is: 38,863.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,071.18 : 127,625.22 = 25,905.30 : x
  2. Step 2: Convert to fraction form
    85,071.18/127,625.22 = 25,905.30/x
  3. Step 3: Cross multiply
    85,071.18x = 127,625.22 × 25,905.30
  4. Step 4: Simplify right side
    85,071.18x = 3,306,169,611.67
  5. Step 5: Solve for x
    x = 3,306,169,611.67/85,071.18
  6. Step 6: Final answer
    x = 38,863.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.