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Finding the Fourth Proportional to 86,674.32, 130,006.53 and 33,355.71

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Solution

The fourth proportional to 86,674.32, 130,006.53 and 33,355.71 is: 50,031.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,674.32 : 130,006.53 = 33,355.71 : x
  2. Step 2: Convert to fraction form
    86,674.32/130,006.53 = 33,355.71/x
  3. Step 3: Cross multiply
    86,674.32x = 130,006.53 × 33,355.71
  4. Step 4: Simplify right side
    86,674.32x = 4,336,460,112.79
  5. Step 5: Solve for x
    x = 4,336,460,112.79/86,674.32
  6. Step 6: Final answer
    x = 50,031.66

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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.