Home / 92,899.20-139,340.70-30,569.70

Finding the Fourth Proportional to 92,899.20, 139,340.70 and 30,569.70

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Solution

The fourth proportional to 92,899.20, 139,340.70 and 30,569.70 is: 45,851.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,899.20 : 139,340.70 = 30,569.70 : x
  2. Step 2: Convert to fraction form
    92,899.20/139,340.70 = 30,569.70/x
  3. Step 3: Cross multiply
    92,899.20x = 139,340.70 × 30,569.70
  4. Step 4: Simplify right side
    92,899.20x = 4,259,603,396.79
  5. Step 5: Solve for x
    x = 4,259,603,396.79/92,899.20
  6. Step 6: Final answer
    x = 45,851.88

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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.