Home / 53,428.19-80,071.49-28,414.38

Finding the Fourth Proportional to 53,428.19, 80,071.49 and 28,414.38

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Solution

The fourth proportional to 53,428.19, 80,071.49 and 28,414.38 is: 42,583.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,428.19 : 80,071.49 = 28,414.38 : x
  2. Step 2: Convert to fraction form
    53,428.19/80,071.49 = 28,414.38/x
  3. Step 3: Cross multiply
    53,428.19x = 80,071.49 × 28,414.38
  4. Step 4: Simplify right side
    53,428.19x = 2,275,181,601.95
  5. Step 5: Solve for x
    x = 2,275,181,601.95/53,428.19
  6. Step 6: Final answer
    x = 42,583.92

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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.