Home / 85,997.28-128,864.40-36,050.14

Finding the Fourth Proportional to 85,997.28, 128,864.40 and 36,050.14

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Solution

The fourth proportional to 85,997.28, 128,864.40 and 36,050.14 is: 54,020.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,997.28 : 128,864.40 = 36,050.14 : x
  2. Step 2: Convert to fraction form
    85,997.28/128,864.40 = 36,050.14/x
  3. Step 3: Cross multiply
    85,997.28x = 128,864.40 × 36,050.14
  4. Step 4: Simplify right side
    85,997.28x = 4,645,579,661.02
  5. Step 5: Solve for x
    x = 4,645,579,661.02/85,997.28
  6. Step 6: Final answer
    x = 54,020.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.