Home / 85,309.86-127,960.18-26,145.70

Finding the Fourth Proportional to 85,309.86, 127,960.18 and 26,145.70

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Solution

The fourth proportional to 85,309.86, 127,960.18 and 26,145.70 is: 39,217.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,309.86 : 127,960.18 = 26,145.70 : x
  2. Step 2: Convert to fraction form
    85,309.86/127,960.18 = 26,145.70/x
  3. Step 3: Cross multiply
    85,309.86x = 127,960.18 × 26,145.70
  4. Step 4: Simplify right side
    85,309.86x = 3,345,608,478.23
  5. Step 5: Solve for x
    x = 3,345,608,478.23/85,309.86
  6. Step 6: Final answer
    x = 39,217.14

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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.