Home / 54,945.93-75,820.28-31,072.53

Finding the Fourth Proportional to 54,945.93, 75,820.28 and 31,072.53

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Solution

The fourth proportional to 54,945.93, 75,820.28 and 31,072.53 is: 42,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,945.93 : 75,820.28 = 31,072.53 : x
  2. Step 2: Convert to fraction form
    54,945.93/75,820.28 = 31,072.53/x
  3. Step 3: Cross multiply
    54,945.93x = 75,820.28 × 31,072.53
  4. Step 4: Simplify right side
    54,945.93x = 2,355,927,769.55
  5. Step 5: Solve for x
    x = 2,355,927,769.55/54,945.93
  6. Step 6: Final answer
    x = 42,877.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.