Home / 76,762.38-115,131.02-54,508.44

Finding the Fourth Proportional to 76,762.38, 115,131.02 and 54,508.44

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Solution

The fourth proportional to 76,762.38, 115,131.02 and 54,508.44 is: 81,753.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,762.38 : 115,131.02 = 54,508.44 : x
  2. Step 2: Convert to fraction form
    76,762.38/115,131.02 = 54,508.44/x
  3. Step 3: Cross multiply
    76,762.38x = 115,131.02 × 54,508.44
  4. Step 4: Simplify right side
    76,762.38x = 6,275,612,295.81
  5. Step 5: Solve for x
    x = 6,275,612,295.81/76,762.38
  6. Step 6: Final answer
    x = 81,753.75

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1.5x scale

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.