Home / 90,900.65-125,443.06-50,622.19

Finding the Fourth Proportional to 90,900.65, 125,443.06 and 50,622.19

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Solution

The fourth proportional to 90,900.65, 125,443.06 and 50,622.19 is: 69,858.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,900.65 : 125,443.06 = 50,622.19 : x
  2. Step 2: Convert to fraction form
    90,900.65/125,443.06 = 50,622.19/x
  3. Step 3: Cross multiply
    90,900.65x = 125,443.06 × 50,622.19
  4. Step 4: Simplify right side
    90,900.65x = 6,350,201,977.34
  5. Step 5: Solve for x
    x = 6,350,201,977.34/90,900.65
  6. Step 6: Final answer
    x = 69,858.71

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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.