Home / 81,988.47-113,111.24-50,102.01

Finding the Fourth Proportional to 81,988.47, 113,111.24 and 50,102.01

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Solution

The fourth proportional to 81,988.47, 113,111.24 and 50,102.01 is: 69,120.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,988.47 : 113,111.24 = 50,102.01 : x
  2. Step 2: Convert to fraction form
    81,988.47/113,111.24 = 50,102.01/x
  3. Step 3: Cross multiply
    81,988.47x = 113,111.24 × 50,102.01
  4. Step 4: Simplify right side
    81,988.47x = 5,667,100,227.08
  5. Step 5: Solve for x
    x = 5,667,100,227.08/81,988.47
  6. Step 6: Final answer
    x = 69,120.70

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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.