Home / 74,337.32-102,584.63-40,345.86

Finding the Fourth Proportional to 74,337.32, 102,584.63 and 40,345.86

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Solution

The fourth proportional to 74,337.32, 102,584.63 and 40,345.86 is: 55,676.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,337.32 : 102,584.63 = 40,345.86 : x
  2. Step 2: Convert to fraction form
    74,337.32/102,584.63 = 40,345.86/x
  3. Step 3: Cross multiply
    74,337.32x = 102,584.63 × 40,345.86
  4. Step 4: Simplify right side
    74,337.32x = 4,138,864,918.40
  5. Step 5: Solve for x
    x = 4,138,864,918.40/74,337.32
  6. Step 6: Final answer
    x = 55,676.81

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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.