Home / 85,127.52-127,718.01-35,231.13

Finding the Fourth Proportional to 85,127.52, 127,718.01 and 35,231.13

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Solution

The fourth proportional to 85,127.52, 127,718.01 and 35,231.13 is: 52,857.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,127.52 : 127,718.01 = 35,231.13 : x
  2. Step 2: Convert to fraction form
    85,127.52/127,718.01 = 35,231.13/x
  3. Step 3: Cross multiply
    85,127.52x = 127,718.01 × 35,231.13
  4. Step 4: Simplify right side
    85,127.52x = 4,499,649,813.65
  5. Step 5: Solve for x
    x = 4,499,649,813.65/85,127.52
  6. Step 6: Final answer
    x = 52,857.76

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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.