Home / 74,622-102,945.06-50,415.18

Finding the Fourth Proportional to 74,622, 102,945.06 and 50,415.18

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Solution

The fourth proportional to 74,622, 102,945.06 and 50,415.18 is: 69,550.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,622 : 102,945.06 = 50,415.18 : x
  2. Step 2: Convert to fraction form
    74,622/102,945.06 = 50,415.18/x
  3. Step 3: Cross multiply
    74,622x = 102,945.06 × 50,415.18
  4. Step 4: Simplify right side
    74,622x = 5,189,993,730.01
  5. Step 5: Solve for x
    x = 5,189,993,730.01/74,622
  6. Step 6: Final answer
    x = 69,550.45

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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.