Home / 86,341.31-129,585.78-33,787.70

Finding the Fourth Proportional to 86,341.31, 129,585.78 and 33,787.70

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Solution

The fourth proportional to 86,341.31, 129,585.78 and 33,787.70 is: 50,710.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,341.31 : 129,585.78 = 33,787.70 : x
  2. Step 2: Convert to fraction form
    86,341.31/129,585.78 = 33,787.70/x
  3. Step 3: Cross multiply
    86,341.31x = 129,585.78 × 33,787.70
  4. Step 4: Simplify right side
    86,341.31x = 4,378,405,782.87
  5. Step 5: Solve for x
    x = 4,378,405,782.87/86,341.31
  6. Step 6: Final answer
    x = 50,710.44

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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.