Home / 78,816.06-118,222.84-36,672.57

Finding the Fourth Proportional to 78,816.06, 118,222.84 and 36,672.57

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Solution

The fourth proportional to 78,816.06, 118,222.84 and 36,672.57 is: 55,008.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,816.06 : 118,222.84 = 36,672.57 : x
  2. Step 2: Convert to fraction form
    78,816.06/118,222.84 = 36,672.57/x
  3. Step 3: Cross multiply
    78,816.06x = 118,222.84 × 36,672.57
  4. Step 4: Simplify right side
    78,816.06x = 4,335,535,753.84
  5. Step 5: Solve for x
    x = 4,335,535,753.84/78,816.06
  6. Step 6: Final answer
    x = 55,008.28

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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.