Home / 78,820.56-118,229.58-36,677.08

Finding the Fourth Proportional to 78,820.56, 118,229.58 and 36,677.08

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Solution

The fourth proportional to 78,820.56, 118,229.58 and 36,677.08 is: 55,015.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,820.56 : 118,229.58 = 36,677.08 : x
  2. Step 2: Convert to fraction form
    78,820.56/118,229.58 = 36,677.08/x
  3. Step 3: Cross multiply
    78,820.56x = 118,229.58 × 36,677.08
  4. Step 4: Simplify right side
    78,820.56x = 4,336,315,764.03
  5. Step 5: Solve for x
    x = 4,336,315,764.03/78,820.56
  6. Step 6: Final answer
    x = 55,015.03

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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.