Home / 101,769.75-140,441.31-56,447.82

Finding the Fourth Proportional to 101,769.75, 140,441.31 and 56,447.82

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Solution

The fourth proportional to 101,769.75, 140,441.31 and 56,447.82 is: 77,897.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,769.75 : 140,441.31 = 56,447.82 : x
  2. Step 2: Convert to fraction form
    101,769.75/140,441.31 = 56,447.82/x
  3. Step 3: Cross multiply
    101,769.75x = 140,441.31 × 56,447.82
  4. Step 4: Simplify right side
    101,769.75x = 7,927,605,787.44
  5. Step 5: Solve for x
    x = 7,927,605,787.44/101,769.75
  6. Step 6: Final answer
    x = 77,897.47

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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.