Home / 90,667.48-125,119.47-50,380.51

Finding the Fourth Proportional to 90,667.48, 125,119.47 and 50,380.51

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Solution

The fourth proportional to 90,667.48, 125,119.47 and 50,380.51 is: 69,524.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,667.48 : 125,119.47 = 50,380.51 : x
  2. Step 2: Convert to fraction form
    90,667.48/125,119.47 = 50,380.51/x
  3. Step 3: Cross multiply
    90,667.48x = 125,119.47 × 50,380.51
  4. Step 4: Simplify right side
    90,667.48x = 6,303,582,709.53
  5. Step 5: Solve for x
    x = 6,303,582,709.53/90,667.48
  6. Step 6: Final answer
    x = 69,524.19

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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.