Home / 55,866.96-83,782.64-18,420.04

Finding the Fourth Proportional to 55,866.96, 83,782.64 and 18,420.04

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Solution

The fourth proportional to 55,866.96, 83,782.64 and 18,420.04 is: 27,624.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,866.96 : 83,782.64 = 18,420.04 : x
  2. Step 2: Convert to fraction form
    55,866.96/83,782.64 = 18,420.04/x
  3. Step 3: Cross multiply
    55,866.96x = 83,782.64 × 18,420.04
  4. Step 4: Simplify right side
    55,866.96x = 1,543,279,580.11
  5. Step 5: Solve for x
    x = 1,543,279,580.11/55,866.96
  6. Step 6: Final answer
    x = 27,624.19

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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.