Home / 98,107.46-135,372.01-57,815.76

Finding the Fourth Proportional to 98,107.46, 135,372.01 and 57,815.76

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Solution

The fourth proportional to 98,107.46, 135,372.01 and 57,815.76 is: 79,776.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,107.46 : 135,372.01 = 57,815.76 : x
  2. Step 2: Convert to fraction form
    98,107.46/135,372.01 = 57,815.76/x
  3. Step 3: Cross multiply
    98,107.46x = 135,372.01 × 57,815.76
  4. Step 4: Simplify right side
    98,107.46x = 7,826,635,051.49
  5. Step 5: Solve for x
    x = 7,826,635,051.49/98,107.46
  6. Step 6: Final answer
    x = 79,776.14

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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.