Home / 86,943.24-130,421.82-27,787.32

Finding the Fourth Proportional to 86,943.24, 130,421.82 and 27,787.32

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Solution

The fourth proportional to 86,943.24, 130,421.82 and 27,787.32 is: 41,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,943.24 : 130,421.82 = 27,787.32 : x
  2. Step 2: Convert to fraction form
    86,943.24/130,421.82 = 27,787.32/x
  3. Step 3: Cross multiply
    86,943.24x = 130,421.82 × 27,787.32
  4. Step 4: Simplify right side
    86,943.24x = 3,624,072,847.32
  5. Step 5: Solve for x
    x = 3,624,072,847.32/86,943.24
  6. Step 6: Final answer
    x = 41,683.20

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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.