Home / 90,347.57-135,542.88-31,183.76

Finding the Fourth Proportional to 90,347.57, 135,542.88 and 31,183.76

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Solution

The fourth proportional to 90,347.57, 135,542.88 and 31,183.76 is: 46,783.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,347.57 : 135,542.88 = 31,183.76 : x
  2. Step 2: Convert to fraction form
    90,347.57/135,542.88 = 31,183.76/x
  3. Step 3: Cross multiply
    90,347.57x = 135,542.88 × 31,183.76
  4. Step 4: Simplify right side
    90,347.57x = 4,226,735,961.91
  5. Step 5: Solve for x
    x = 4,226,735,961.91/90,347.57
  6. Step 6: Final answer
    x = 46,783.06

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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.