Home / 55,430.47-83,153.94-20,367.39

Finding the Fourth Proportional to 55,430.47, 83,153.94 and 20,367.39

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Solution

The fourth proportional to 55,430.47, 83,153.94 and 20,367.39 is: 30,554.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,430.47 : 83,153.94 = 20,367.39 : x
  2. Step 2: Convert to fraction form
    55,430.47/83,153.94 = 20,367.39/x
  3. Step 3: Cross multiply
    55,430.47x = 83,153.94 × 20,367.39
  4. Step 4: Simplify right side
    55,430.47x = 1,693,628,726.02
  5. Step 5: Solve for x
    x = 1,693,628,726.02/55,430.47
  6. Step 6: Final answer
    x = 30,554.11

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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.