Home / 86,857.58-119,699.64-69,610.35

Finding the Fourth Proportional to 86,857.58, 119,699.64 and 69,610.35

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Solution

The fourth proportional to 86,857.58, 119,699.64 and 69,610.35 is: 95,930.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,857.58 : 119,699.64 = 69,610.35 : x
  2. Step 2: Convert to fraction form
    86,857.58/119,699.64 = 69,610.35/x
  3. Step 3: Cross multiply
    86,857.58x = 119,699.64 × 69,610.35
  4. Step 4: Simplify right side
    86,857.58x = 8,332,333,835.27
  5. Step 5: Solve for x
    x = 8,332,333,835.27/86,857.58
  6. Step 6: Final answer
    x = 95,930.99

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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.