Home / 78,123.06-107,816.49-44,137.80

Finding the Fourth Proportional to 78,123.06, 107,816.49 and 44,137.80

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Solution

The fourth proportional to 78,123.06, 107,816.49 and 44,137.80 is: 60,913.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,123.06 : 107,816.49 = 44,137.80 : x
  2. Step 2: Convert to fraction form
    78,123.06/107,816.49 = 44,137.80/x
  3. Step 3: Cross multiply
    78,123.06x = 107,816.49 × 44,137.80
  4. Step 4: Simplify right side
    78,123.06x = 4,758,782,672.32
  5. Step 5: Solve for x
    x = 4,758,782,672.32/78,123.06
  6. Step 6: Final answer
    x = 60,913.93

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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.