Home / 82,865.14-114,353.30-45,139.40

Finding the Fourth Proportional to 82,865.14, 114,353.30 and 45,139.40

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Solution

The fourth proportional to 82,865.14, 114,353.30 and 45,139.40 is: 62,292.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,865.14 : 114,353.30 = 45,139.40 : x
  2. Step 2: Convert to fraction form
    82,865.14/114,353.30 = 45,139.40/x
  3. Step 3: Cross multiply
    82,865.14x = 114,353.30 × 45,139.40
  4. Step 4: Simplify right side
    82,865.14x = 5,161,839,350.02
  5. Step 5: Solve for x
    x = 5,161,839,350.02/82,865.14
  6. Step 6: Final answer
    x = 62,292.05

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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.