Home / 55,488.61-83,224.68-20,420.07

Finding the Fourth Proportional to 55,488.61, 83,224.68 and 20,420.07

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Solution

The fourth proportional to 55,488.61, 83,224.68 and 20,420.07 is: 30,627.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,488.61 : 83,224.68 = 20,420.07 : x
  2. Step 2: Convert to fraction form
    55,488.61/83,224.68 = 20,420.07/x
  3. Step 3: Cross multiply
    55,488.61x = 83,224.68 × 20,420.07
  4. Step 4: Simplify right side
    55,488.61x = 1,699,453,791.33
  5. Step 5: Solve for x
    x = 1,699,453,791.33/55,488.61
  6. Step 6: Final answer
    x = 30,627.07

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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.