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Finding the Fourth Proportional to 85,275.92, 127,914.19 and 26,111.35

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Solution

The fourth proportional to 85,275.92, 127,914.19 and 26,111.35 is: 39,167.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,275.92 : 127,914.19 = 26,111.35 : x
  2. Step 2: Convert to fraction form
    85,275.92/127,914.19 = 26,111.35/x
  3. Step 3: Cross multiply
    85,275.92x = 127,914.19 × 26,111.35
  4. Step 4: Simplify right side
    85,275.92x = 3,340,011,560.15
  5. Step 5: Solve for x
    x = 3,340,011,560.15/85,275.92
  6. Step 6: Final answer
    x = 39,167.11

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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.