Home / 79,874.24-119,650.98-39,772.40

Finding the Fourth Proportional to 79,874.24, 119,650.98 and 39,772.40

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Solution

The fourth proportional to 79,874.24, 119,650.98 and 39,772.40 is: 59,578.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,874.24 : 119,650.98 = 39,772.40 : x
  2. Step 2: Convert to fraction form
    79,874.24/119,650.98 = 39,772.40/x
  3. Step 3: Cross multiply
    79,874.24x = 119,650.98 × 39,772.40
  4. Step 4: Simplify right side
    79,874.24x = 4,758,806,636.95
  5. Step 5: Solve for x
    x = 4,758,806,636.95/79,874.24
  6. Step 6: Final answer
    x = 59,578.74

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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.