Home / 77,680.06-116,571.96-42,644.32

Finding the Fourth Proportional to 77,680.06, 116,571.96 and 42,644.32

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Solution

The fourth proportional to 77,680.06, 116,571.96 and 42,644.32 is: 63,994.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,680.06 : 116,571.96 = 42,644.32 : x
  2. Step 2: Convert to fraction form
    77,680.06/116,571.96 = 42,644.32/x
  3. Step 3: Cross multiply
    77,680.06x = 116,571.96 × 42,644.32
  4. Step 4: Simplify right side
    77,680.06x = 4,971,131,965.27
  5. Step 5: Solve for x
    x = 4,971,131,965.27/77,680.06
  6. Step 6: Final answer
    x = 63,994.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.