Home / 86,741.28-119,760.12-56,171.88

Finding the Fourth Proportional to 86,741.28, 119,760.12 and 56,171.88

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Solution

The fourth proportional to 86,741.28, 119,760.12 and 56,171.88 is: 77,554.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,741.28 : 119,760.12 = 56,171.88 : x
  2. Step 2: Convert to fraction form
    86,741.28/119,760.12 = 56,171.88/x
  3. Step 3: Cross multiply
    86,741.28x = 119,760.12 × 56,171.88
  4. Step 4: Simplify right side
    86,741.28x = 6,727,151,089.43
  5. Step 5: Solve for x
    x = 6,727,151,089.43/86,741.28
  6. Step 6: Final answer
    x = 77,554.21

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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.