Home / 90,981.50-136,453.41-24,405.80

Finding the Fourth Proportional to 90,981.50, 136,453.41 and 24,405.80

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Solution

The fourth proportional to 90,981.50, 136,453.41 and 24,405.80 is: 36,603.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,981.50 : 136,453.41 = 24,405.80 : x
  2. Step 2: Convert to fraction form
    90,981.50/136,453.41 = 24,405.80/x
  3. Step 3: Cross multiply
    90,981.50x = 136,453.41 × 24,405.80
  4. Step 4: Simplify right side
    90,981.50x = 3,330,254,633.78
  5. Step 5: Solve for x
    x = 3,330,254,633.78/90,981.50
  6. Step 6: Final answer
    x = 36,603.65

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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.