Home / 84,861.64-127,098.69-40,519.52

Finding the Fourth Proportional to 84,861.64, 127,098.69 and 40,519.52

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Solution

The fourth proportional to 84,861.64, 127,098.69 and 40,519.52 is: 60,686.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,861.64 : 127,098.69 = 40,519.52 : x
  2. Step 2: Convert to fraction form
    84,861.64/127,098.69 = 40,519.52/x
  3. Step 3: Cross multiply
    84,861.64x = 127,098.69 × 40,519.52
  4. Step 4: Simplify right side
    84,861.64x = 5,149,977,911.43
  5. Step 5: Solve for x
    x = 5,149,977,911.43/84,861.64
  6. Step 6: Final answer
    x = 60,686.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.