Home / 86,743.28-119,762.88-56,173.88

Finding the Fourth Proportional to 86,743.28, 119,762.88 and 56,173.88

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Solution

The fourth proportional to 86,743.28, 119,762.88 and 56,173.88 is: 77,556.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,743.28 : 119,762.88 = 56,173.88 : x
  2. Step 2: Convert to fraction form
    86,743.28/119,762.88 = 56,173.88/x
  3. Step 3: Cross multiply
    86,743.28x = 119,762.88 × 56,173.88
  4. Step 4: Simplify right side
    86,743.28x = 6,727,545,649.57
  5. Step 5: Solve for x
    x = 6,727,545,649.57/86,743.28
  6. Step 6: Final answer
    x = 77,556.97

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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.