Home / 98,011.69-135,235.31-57,710.75

Finding the Fourth Proportional to 98,011.69, 135,235.31 and 57,710.75

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Solution

The fourth proportional to 98,011.69, 135,235.31 and 57,710.75 is: 79,628.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,011.69 : 135,235.31 = 57,710.75 : x
  2. Step 2: Convert to fraction form
    98,011.69/135,235.31 = 57,710.75/x
  3. Step 3: Cross multiply
    98,011.69x = 135,235.31 × 57,710.75
  4. Step 4: Simplify right side
    98,011.69x = 7,804,530,201.85
  5. Step 5: Solve for x
    x = 7,804,530,201.85/98,011.69
  6. Step 6: Final answer
    x = 79,628.57

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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.