Home / 79,144.44-118,715.67-31,780.50

Finding the Fourth Proportional to 79,144.44, 118,715.67 and 31,780.50

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Solution

The fourth proportional to 79,144.44, 118,715.67 and 31,780.50 is: 47,670.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,144.44 : 118,715.67 = 31,780.50 : x
  2. Step 2: Convert to fraction form
    79,144.44/118,715.67 = 31,780.50/x
  3. Step 3: Cross multiply
    79,144.44x = 118,715.67 × 31,780.50
  4. Step 4: Simplify right side
    79,144.44x = 3,772,843,350.44
  5. Step 5: Solve for x
    x = 3,772,843,350.44/79,144.44
  6. Step 6: Final answer
    x = 47,670.35

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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.