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Finding the Fourth Proportional to 86,889.34, 130,332.66 and 27,724.65

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Solution

The fourth proportional to 86,889.34, 130,332.66 and 27,724.65 is: 41,586.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,889.34 : 130,332.66 = 27,724.65 : x
  2. Step 2: Convert to fraction form
    86,889.34/130,332.66 = 27,724.65/x
  3. Step 3: Cross multiply
    86,889.34x = 130,332.66 × 27,724.65
  4. Step 4: Simplify right side
    86,889.34x = 3,613,427,382.07
  5. Step 5: Solve for x
    x = 3,613,427,382.07/86,889.34
  6. Step 6: Final answer
    x = 41,586.54

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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.