Home / 55,420.10-83,141.84-17,977.26

Finding the Fourth Proportional to 55,420.10, 83,141.84 and 17,977.26

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Solution

The fourth proportional to 55,420.10, 83,141.84 and 17,977.26 is: 26,969.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,420.10 : 83,141.84 = 17,977.26 : x
  2. Step 2: Convert to fraction form
    55,420.10/83,141.84 = 17,977.26/x
  3. Step 3: Cross multiply
    55,420.10x = 83,141.84 × 17,977.26
  4. Step 4: Simplify right side
    55,420.10x = 1,494,662,474.56
  5. Step 5: Solve for x
    x = 1,494,662,474.56/55,420.10
  6. Step 6: Final answer
    x = 26,969.68

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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.