Home / 90,682.83-136,025.46-31,519.62

Finding the Fourth Proportional to 90,682.83, 136,025.46 and 31,519.62

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Solution

The fourth proportional to 90,682.83, 136,025.46 and 31,519.62 is: 47,279.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,682.83 : 136,025.46 = 31,519.62 : x
  2. Step 2: Convert to fraction form
    90,682.83/136,025.46 = 31,519.62/x
  3. Step 3: Cross multiply
    90,682.83x = 136,025.46 × 31,519.62
  4. Step 4: Simplify right side
    90,682.83x = 4,287,470,809.53
  5. Step 5: Solve for x
    x = 4,287,470,809.53/90,682.83
  6. Step 6: Final answer
    x = 47,279.85

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1.5x scale

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.