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Finding the Fourth Proportional to 86,866.76, 130,302.38 and 23,687.40

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Solution

The fourth proportional to 86,866.76, 130,302.38 and 23,687.40 is: 35,531.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,866.76 : 130,302.38 = 23,687.40 : x
  2. Step 2: Convert to fraction form
    86,866.76/130,302.38 = 23,687.40/x
  3. Step 3: Cross multiply
    86,866.76x = 130,302.38 × 23,687.40
  4. Step 4: Simplify right side
    86,866.76x = 3,086,524,596.01
  5. Step 5: Solve for x
    x = 3,086,524,596.01/86,866.76
  6. Step 6: Final answer
    x = 35,531.71

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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.