Home / 73,935.20-102,048.71-42,122.85

Finding the Fourth Proportional to 73,935.20, 102,048.71 and 42,122.85

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Solution

The fourth proportional to 73,935.20, 102,048.71 and 42,122.85 is: 58,139.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,935.20 : 102,048.71 = 42,122.85 : x
  2. Step 2: Convert to fraction form
    73,935.20/102,048.71 = 42,122.85/x
  3. Step 3: Cross multiply
    73,935.20x = 102,048.71 × 42,122.85
  4. Step 4: Simplify right side
    73,935.20x = 4,298,582,293.41
  5. Step 5: Solve for x
    x = 4,298,582,293.41/73,935.20
  6. Step 6: Final answer
    x = 58,139.87

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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.