Home / 86,811.68-119,767.92-49,057.76

Finding the Fourth Proportional to 86,811.68, 119,767.92 and 49,057.76

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Solution

The fourth proportional to 86,811.68, 119,767.92 and 49,057.76 is: 67,681.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,811.68 : 119,767.92 = 49,057.76 : x
  2. Step 2: Convert to fraction form
    86,811.68/119,767.92 = 49,057.76/x
  3. Step 3: Cross multiply
    86,811.68x = 119,767.92 × 49,057.76
  4. Step 4: Simplify right side
    86,811.68x = 5,875,545,875.06
  5. Step 5: Solve for x
    x = 5,875,545,875.06/86,811.68
  6. Step 6: Final answer
    x = 67,681.51

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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.