Home / 90,774.99-136,180.98-31,615.29

Finding the Fourth Proportional to 90,774.99, 136,180.98 and 31,615.29

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Solution

The fourth proportional to 90,774.99, 136,180.98 and 31,615.29 is: 47,429.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,774.99 : 136,180.98 = 31,615.29 : x
  2. Step 2: Convert to fraction form
    90,774.99/136,180.98 = 31,615.29/x
  3. Step 3: Cross multiply
    90,774.99x = 136,180.98 × 31,615.29
  4. Step 4: Simplify right side
    90,774.99x = 4,305,401,175.18
  5. Step 5: Solve for x
    x = 4,305,401,175.18/90,774.99
  6. Step 6: Final answer
    x = 47,429.38

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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.