Home / 86,839.28-119,835.63-48,078.83

Finding the Fourth Proportional to 86,839.28, 119,835.63 and 48,078.83

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Solution

The fourth proportional to 86,839.28, 119,835.63 and 48,078.83 is: 66,347.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,839.28 : 119,835.63 = 48,078.83 : x
  2. Step 2: Convert to fraction form
    86,839.28/119,835.63 = 48,078.83/x
  3. Step 3: Cross multiply
    86,839.28x = 119,835.63 × 48,078.83
  4. Step 4: Simplify right side
    86,839.28x = 5,761,556,882.71
  5. Step 5: Solve for x
    x = 5,761,556,882.71/86,839.28
  6. Step 6: Final answer
    x = 66,347.36

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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.