Home / 78,968.32-118,493.48-36,836.37

Finding the Fourth Proportional to 78,968.32, 118,493.48 and 36,836.37

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Solution

The fourth proportional to 78,968.32, 118,493.48 and 36,836.37 is: 55,273.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,968.32 : 118,493.48 = 36,836.37 : x
  2. Step 2: Convert to fraction form
    78,968.32/118,493.48 = 36,836.37/x
  3. Step 3: Cross multiply
    78,968.32x = 118,493.48 × 36,836.37
  4. Step 4: Simplify right side
    78,968.32x = 4,364,869,763.96
  5. Step 5: Solve for x
    x = 4,364,869,763.96/78,968.32
  6. Step 6: Final answer
    x = 55,273.68

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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.