Home / 79,211.39-118,778.20-39,184.13

Finding the Fourth Proportional to 79,211.39, 118,778.20 and 39,184.13

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Solution

The fourth proportional to 79,211.39, 118,778.20 and 39,184.13 is: 58,756.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,211.39 : 118,778.20 = 39,184.13 : x
  2. Step 2: Convert to fraction form
    79,211.39/118,778.20 = 39,184.13/x
  3. Step 3: Cross multiply
    79,211.39x = 118,778.20 × 39,184.13
  4. Step 4: Simplify right side
    79,211.39x = 4,654,219,836.08
  5. Step 5: Solve for x
    x = 4,654,219,836.08/79,211.39
  6. Step 6: Final answer
    x = 58,756.95

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1.5x scale

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.