Home / 55,428.25-83,160.09-19,865.56

Finding the Fourth Proportional to 55,428.25, 83,160.09 and 19,865.56

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Solution

The fourth proportional to 55,428.25, 83,160.09 and 19,865.56 is: 29,804.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,428.25 : 83,160.09 = 19,865.56 : x
  2. Step 2: Convert to fraction form
    55,428.25/83,160.09 = 19,865.56/x
  3. Step 3: Cross multiply
    55,428.25x = 83,160.09 × 19,865.56
  4. Step 4: Simplify right side
    55,428.25x = 1,652,021,757.50
  5. Step 5: Solve for x
    x = 1,652,021,757.50/55,428.25
  6. Step 6: Final answer
    x = 29,804.69

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1.5x scale

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.