Home / 57,120.73-78,935.04-42,948.97

Finding the Fourth Proportional to 57,120.73, 78,935.04 and 42,948.97

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Solution

The fourth proportional to 57,120.73, 78,935.04 and 42,948.97 is: 59,351.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,120.73 : 78,935.04 = 42,948.97 : x
  2. Step 2: Convert to fraction form
    57,120.73/78,935.04 = 42,948.97/x
  3. Step 3: Cross multiply
    57,120.73x = 78,935.04 × 42,948.97
  4. Step 4: Simplify right side
    57,120.73x = 3,390,178,270.23
  5. Step 5: Solve for x
    x = 3,390,178,270.23/57,120.73
  6. Step 6: Final answer
    x = 59,351.11

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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.