Home / 79,239.20-118,778.84-49,677.80

Finding the Fourth Proportional to 79,239.20, 118,778.84 and 49,677.80

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Solution

The fourth proportional to 79,239.20, 118,778.84 and 49,677.80 is: 74,466.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,239.20 : 118,778.84 = 49,677.80 : x
  2. Step 2: Convert to fraction form
    79,239.20/118,778.84 = 49,677.80/x
  3. Step 3: Cross multiply
    79,239.20x = 118,778.84 × 49,677.80
  4. Step 4: Simplify right side
    79,239.20x = 5,900,671,457.75
  5. Step 5: Solve for x
    x = 5,900,671,457.75/79,239.20
  6. Step 6: Final answer
    x = 74,466.57

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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.