Home / 90,628.52-135,944.12-31,466.08

Finding the Fourth Proportional to 90,628.52, 135,944.12 and 31,466.08

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Solution

The fourth proportional to 90,628.52, 135,944.12 and 31,466.08 is: 47,199.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,628.52 : 135,944.12 = 31,466.08 : x
  2. Step 2: Convert to fraction form
    90,628.52/135,944.12 = 31,466.08/x
  3. Step 3: Cross multiply
    90,628.52x = 135,944.12 × 31,466.08
  4. Step 4: Simplify right side
    90,628.52x = 4,277,628,555.45
  5. Step 5: Solve for x
    x = 4,277,628,555.45/90,628.52
  6. Step 6: Final answer
    x = 47,199.59

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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.