Home / 90,631.32-125,073.46-50,343.12

Finding the Fourth Proportional to 90,631.32, 125,073.46 and 50,343.12

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Solution

The fourth proportional to 90,631.32, 125,073.46 and 50,343.12 is: 69,474.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,631.32 : 125,073.46 = 50,343.12 : x
  2. Step 2: Convert to fraction form
    90,631.32/125,073.46 = 50,343.12/x
  3. Step 3: Cross multiply
    90,631.32x = 125,073.46 × 50,343.12
  4. Step 4: Simplify right side
    90,631.32x = 6,296,588,205.60
  5. Step 5: Solve for x
    x = 6,296,588,205.60/90,631.32
  6. Step 6: Final answer
    x = 69,474.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.