Home / 105,759.24-145,947.75-58,012.70

Finding the Fourth Proportional to 105,759.24, 145,947.75 and 58,012.70

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Solution

The fourth proportional to 105,759.24, 145,947.75 and 58,012.70 is: 80,057.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,759.24 : 145,947.75 = 58,012.70 : x
  2. Step 2: Convert to fraction form
    105,759.24/145,947.75 = 58,012.70/x
  3. Step 3: Cross multiply
    105,759.24x = 145,947.75 × 58,012.70
  4. Step 4: Simplify right side
    105,759.24x = 8,466,822,306.69
  5. Step 5: Solve for x
    x = 8,466,822,306.69/105,759.24
  6. Step 6: Final answer
    x = 80,057.52

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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.