Home / 84,655.10-126,983.73-58,352.78

Finding the Fourth Proportional to 84,655.10, 126,983.73 and 58,352.78

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Solution

The fourth proportional to 84,655.10, 126,983.73 and 58,352.78 is: 87,529.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,655.10 : 126,983.73 = 58,352.78 : x
  2. Step 2: Convert to fraction form
    84,655.10/126,983.73 = 58,352.78/x
  3. Step 3: Cross multiply
    84,655.10x = 126,983.73 × 58,352.78
  4. Step 4: Simplify right side
    84,655.10x = 7,409,853,660.27
  5. Step 5: Solve for x
    x = 7,409,853,660.27/84,655.10
  6. Step 6: Final answer
    x = 87,529.91

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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.