Home / 74,337.09-102,585.21-40,345.56

Finding the Fourth Proportional to 74,337.09, 102,585.21 and 40,345.56

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Solution

The fourth proportional to 74,337.09, 102,585.21 and 40,345.56 is: 55,676.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,337.09 : 102,585.21 = 40,345.56 : x
  2. Step 2: Convert to fraction form
    74,337.09/102,585.21 = 40,345.56/x
  3. Step 3: Cross multiply
    74,337.09x = 102,585.21 × 40,345.56
  4. Step 4: Simplify right side
    74,337.09x = 4,138,857,745.17
  5. Step 5: Solve for x
    x = 4,138,857,745.17/74,337.09
  6. Step 6: Final answer
    x = 55,676.89

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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.