Home / 74,469.11-102,767.81-40,477.86

Finding the Fourth Proportional to 74,469.11, 102,767.81 and 40,477.86

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Solution

The fourth proportional to 74,469.11, 102,767.81 and 40,477.86 is: 55,859.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,469.11 : 102,767.81 = 40,477.86 : x
  2. Step 2: Convert to fraction form
    74,469.11/102,767.81 = 40,477.86/x
  3. Step 3: Cross multiply
    74,469.11x = 102,767.81 × 40,477.86
  4. Step 4: Simplify right side
    74,469.11x = 4,159,820,823.30
  5. Step 5: Solve for x
    x = 4,159,820,823.30/74,469.11
  6. Step 6: Final answer
    x = 55,859.69

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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.