Home / 48,165.50-66,468.39-31,398.50

Finding the Fourth Proportional to 48,165.50, 66,468.39 and 31,398.50

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Solution

The fourth proportional to 48,165.50, 66,468.39 and 31,398.50 is: 43,329.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,165.50 : 66,468.39 = 31,398.50 : x
  2. Step 2: Convert to fraction form
    48,165.50/66,468.39 = 31,398.50/x
  3. Step 3: Cross multiply
    48,165.50x = 66,468.39 × 31,398.50
  4. Step 4: Simplify right side
    48,165.50x = 2,087,007,743.42
  5. Step 5: Solve for x
    x = 2,087,007,743.42/48,165.50
  6. Step 6: Final answer
    x = 43,329.93

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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.