Home / 85,713.06-128,539.44-25,723.62

Finding the Fourth Proportional to 85,713.06, 128,539.44 and 25,723.62

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Solution

The fourth proportional to 85,713.06, 128,539.44 and 25,723.62 is: 38,576.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,713.06 : 128,539.44 = 25,723.62 : x
  2. Step 2: Convert to fraction form
    85,713.06/128,539.44 = 25,723.62/x
  3. Step 3: Cross multiply
    85,713.06x = 128,539.44 × 25,723.62
  4. Step 4: Simplify right side
    85,713.06x = 3,306,499,709.57
  5. Step 5: Solve for x
    x = 3,306,499,709.57/85,713.06
  6. Step 6: Final answer
    x = 38,576.38

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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.