Home / 79,344.26-118,937.55-39,780.62

Finding the Fourth Proportional to 79,344.26, 118,937.55 and 39,780.62

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Solution

The fourth proportional to 79,344.26, 118,937.55 and 39,780.62 is: 59,631.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,344.26 : 118,937.55 = 39,780.62 : x
  2. Step 2: Convert to fraction form
    79,344.26/118,937.55 = 39,780.62/x
  3. Step 3: Cross multiply
    79,344.26x = 118,937.55 × 39,780.62
  4. Step 4: Simplify right side
    79,344.26x = 4,731,409,926.80
  5. Step 5: Solve for x
    x = 4,731,409,926.80/79,344.26
  6. Step 6: Final answer
    x = 59,631.41

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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.