Home / 82,861.04-114,390.60-56,144.72

Finding the Fourth Proportional to 82,861.04, 114,390.60 and 56,144.72

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Solution

The fourth proportional to 82,861.04, 114,390.60 and 56,144.72 is: 77,508.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,861.04 : 114,390.60 = 56,144.72 : x
  2. Step 2: Convert to fraction form
    82,861.04/114,390.60 = 56,144.72/x
  3. Step 3: Cross multiply
    82,861.04x = 114,390.60 × 56,144.72
  4. Step 4: Simplify right side
    82,861.04x = 6,422,428,207.63
  5. Step 5: Solve for x
    x = 6,422,428,207.63/82,861.04
  6. Step 6: Final answer
    x = 77,508.42

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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.