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Finding the Fourth Proportional to 86,803.67, 130,162.43 and 27,631.65

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Solution

The fourth proportional to 86,803.67, 130,162.43 and 27,631.65 is: 41,433.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,803.67 : 130,162.43 = 27,631.65 : x
  2. Step 2: Convert to fraction form
    86,803.67/130,162.43 = 27,631.65/x
  3. Step 3: Cross multiply
    86,803.67x = 130,162.43 × 27,631.65
  4. Step 4: Simplify right side
    86,803.67x = 3,596,602,708.91
  5. Step 5: Solve for x
    x = 3,596,602,708.91/86,803.67
  6. Step 6: Final answer
    x = 41,433.76

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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.