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Finding the Fourth Proportional to 74,345.88, 102,597.41 and 40,354.37

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Solution

The fourth proportional to 74,345.88, 102,597.41 and 40,354.37 is: 55,689.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,345.88 : 102,597.41 = 40,354.37 : x
  2. Step 2: Convert to fraction form
    74,345.88/102,597.41 = 40,354.37/x
  3. Step 3: Cross multiply
    74,345.88x = 102,597.41 × 40,354.37
  4. Step 4: Simplify right side
    74,345.88x = 4,140,253,844.18
  5. Step 5: Solve for x
    x = 4,140,253,844.18/74,345.88
  6. Step 6: Final answer
    x = 55,689.09

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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.