Home / 74,515.83-102,829.76-40,981.83

Finding the Fourth Proportional to 74,515.83, 102,829.76 and 40,981.83

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Solution

The fourth proportional to 74,515.83, 102,829.76 and 40,981.83 is: 56,553.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,515.83 : 102,829.76 = 40,981.83 : x
  2. Step 2: Convert to fraction form
    74,515.83/102,829.76 = 40,981.83/x
  3. Step 3: Cross multiply
    74,515.83x = 102,829.76 × 40,981.83
  4. Step 4: Simplify right side
    74,515.83x = 4,214,151,538.35
  5. Step 5: Solve for x
    x = 4,214,151,538.35/74,515.83
  6. Step 6: Final answer
    x = 56,553.78

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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.