Home / 78,063.02-107,743.83-49,364.36

Finding the Fourth Proportional to 78,063.02, 107,743.83 and 49,364.36

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Solution

The fourth proportional to 78,063.02, 107,743.83 and 49,364.36 is: 68,133.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,063.02 : 107,743.83 = 49,364.36 : x
  2. Step 2: Convert to fraction form
    78,063.02/107,743.83 = 49,364.36/x
  3. Step 3: Cross multiply
    78,063.02x = 107,743.83 × 49,364.36
  4. Step 4: Simplify right side
    78,063.02x = 5,318,705,211.90
  5. Step 5: Solve for x
    x = 5,318,705,211.90/78,063.02
  6. Step 6: Final answer
    x = 68,133.48

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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.