Home / 86,538.68-119,382.42-56,312.97

Finding the Fourth Proportional to 86,538.68, 119,382.42 and 56,312.97

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Solution

The fourth proportional to 86,538.68, 119,382.42 and 56,312.97 is: 77,685.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,538.68 : 119,382.42 = 56,312.97 : x
  2. Step 2: Convert to fraction form
    86,538.68/119,382.42 = 56,312.97/x
  3. Step 3: Cross multiply
    86,538.68x = 119,382.42 × 56,312.97
  4. Step 4: Simplify right side
    86,538.68x = 6,722,778,635.99
  5. Step 5: Solve for x
    x = 6,722,778,635.99/86,538.68
  6. Step 6: Final answer
    x = 77,685.25

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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.