Home / 74,819.50-103,253.08-41,287.66

Finding the Fourth Proportional to 74,819.50, 103,253.08 and 41,287.66

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Solution

The fourth proportional to 74,819.50, 103,253.08 and 41,287.66 is: 56,978.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,819.50 : 103,253.08 = 41,287.66 : x
  2. Step 2: Convert to fraction form
    74,819.50/103,253.08 = 41,287.66/x
  3. Step 3: Cross multiply
    74,819.50x = 103,253.08 × 41,287.66
  4. Step 4: Simplify right side
    74,819.50x = 4,263,078,060.99
  5. Step 5: Solve for x
    x = 4,263,078,060.99/74,819.50
  6. Step 6: Final answer
    x = 56,978.17

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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.