Home / 86,837.74-119,836.47-49,119.28

Finding the Fourth Proportional to 86,837.74, 119,836.47 and 49,119.28

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Solution

The fourth proportional to 86,837.74, 119,836.47 and 49,119.28 is: 67,784.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,837.74 : 119,836.47 = 49,119.28 : x
  2. Step 2: Convert to fraction form
    86,837.74/119,836.47 = 49,119.28/x
  3. Step 3: Cross multiply
    86,837.74x = 119,836.47 × 49,119.28
  4. Step 4: Simplify right side
    86,837.74x = 5,886,281,124.14
  5. Step 5: Solve for x
    x = 5,886,281,124.14/86,837.74
  6. Step 6: Final answer
    x = 67,784.83

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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.