Home / 78,237.09-107,972.64-44,245.80

Finding the Fourth Proportional to 78,237.09, 107,972.64 and 44,245.80

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Solution

The fourth proportional to 78,237.09, 107,972.64 and 44,245.80 is: 61,062.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,237.09 : 107,972.64 = 44,245.80 : x
  2. Step 2: Convert to fraction form
    78,237.09/107,972.64 = 44,245.80/x
  3. Step 3: Cross multiply
    78,237.09x = 107,972.64 × 44,245.80
  4. Step 4: Simplify right side
    78,237.09x = 4,777,335,834.91
  5. Step 5: Solve for x
    x = 4,777,335,834.91/78,237.09
  6. Step 6: Final answer
    x = 61,062.29

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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.