Home / 86,947.64-130,393.32-27,769.32

Finding the Fourth Proportional to 86,947.64, 130,393.32 and 27,769.32

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Solution

The fourth proportional to 86,947.64, 130,393.32 and 27,769.32 is: 41,644.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,947.64 : 130,393.32 = 27,769.32 : x
  2. Step 2: Convert to fraction form
    86,947.64/130,393.32 = 27,769.32/x
  3. Step 3: Cross multiply
    86,947.64x = 130,393.32 × 27,769.32
  4. Step 4: Simplify right side
    86,947.64x = 3,620,933,828.94
  5. Step 5: Solve for x
    x = 3,620,933,828.94/86,947.64
  6. Step 6: Final answer
    x = 41,644.99

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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.