Home / 74,891.04-103,349.68-40,900

Finding the Fourth Proportional to 74,891.04, 103,349.68 and 40,900

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Solution

The fourth proportional to 74,891.04, 103,349.68 and 40,900 is: 56,442.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,891.04 : 103,349.68 = 40,900 : x
  2. Step 2: Convert to fraction form
    74,891.04/103,349.68 = 40,900/x
  3. Step 3: Cross multiply
    74,891.04x = 103,349.68 × 40,900
  4. Step 4: Simplify right side
    74,891.04x = 4,227,001,912.00
  5. Step 5: Solve for x
    x = 4,227,001,912.00/74,891.04
  6. Step 6: Final answer
    x = 56,442.02

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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.