Home / 90,415.46-135,622.10-43,635.26

Finding the Fourth Proportional to 90,415.46, 135,622.10 and 43,635.26

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Solution

The fourth proportional to 90,415.46, 135,622.10 and 43,635.26 is: 65,452.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,415.46 : 135,622.10 = 43,635.26 : x
  2. Step 2: Convert to fraction form
    90,415.46/135,622.10 = 43,635.26/x
  3. Step 3: Cross multiply
    90,415.46x = 135,622.10 × 43,635.26
  4. Step 4: Simplify right side
    90,415.46x = 5,917,905,595.25
  5. Step 5: Solve for x
    x = 5,917,905,595.25/90,415.46
  6. Step 6: Final answer
    x = 65,452.36

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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.