Home / 84,945.81-127,427.94-28,012.73

Finding the Fourth Proportional to 84,945.81, 127,427.94 and 28,012.73

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Solution

The fourth proportional to 84,945.81, 127,427.94 and 28,012.73 is: 42,022.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,945.81 : 127,427.94 = 28,012.73 : x
  2. Step 2: Convert to fraction form
    84,945.81/127,427.94 = 28,012.73/x
  3. Step 3: Cross multiply
    84,945.81x = 127,427.94 × 28,012.73
  4. Step 4: Simplify right side
    84,945.81x = 3,569,603,700.47
  5. Step 5: Solve for x
    x = 3,569,603,700.47/84,945.81
  6. Step 6: Final answer
    x = 42,022.13

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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.