Home / 76,200.36-105,098.76-66,752.52

Finding the Fourth Proportional to 76,200.36, 105,098.76 and 66,752.52

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Solution

The fourth proportional to 76,200.36, 105,098.76 and 66,752.52 is: 92,067.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,200.36 : 105,098.76 = 66,752.52 : x
  2. Step 2: Convert to fraction form
    76,200.36/105,098.76 = 66,752.52/x
  3. Step 3: Cross multiply
    76,200.36x = 105,098.76 × 66,752.52
  4. Step 4: Simplify right side
    76,200.36x = 7,015,607,078.88
  5. Step 5: Solve for x
    x = 7,015,607,078.88/76,200.36
  6. Step 6: Final answer
    x = 92,067.90

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1.5x scale

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.