Home / 90,633.80-135,999.30-38,048.60

Finding the Fourth Proportional to 90,633.80, 135,999.30 and 38,048.60

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Solution

The fourth proportional to 90,633.80, 135,999.30 and 38,048.60 is: 57,093.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,633.80 : 135,999.30 = 38,048.60 : x
  2. Step 2: Convert to fraction form
    90,633.80/135,999.30 = 38,048.60/x
  3. Step 3: Cross multiply
    90,633.80x = 135,999.30 × 38,048.60
  4. Step 4: Simplify right side
    90,633.80x = 5,174,582,965.98
  5. Step 5: Solve for x
    x = 5,174,582,965.98/90,633.80
  6. Step 6: Final answer
    x = 57,093.30

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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.