Home / 76,879.08-106,087.14-45,043.56

Finding the Fourth Proportional to 76,879.08, 106,087.14 and 45,043.56

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Solution

The fourth proportional to 76,879.08, 106,087.14 and 45,043.56 is: 62,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,879.08 : 106,087.14 = 45,043.56 : x
  2. Step 2: Convert to fraction form
    76,879.08/106,087.14 = 45,043.56/x
  3. Step 3: Cross multiply
    76,879.08x = 106,087.14 × 45,043.56
  4. Step 4: Simplify right side
    76,879.08x = 4,778,542,455.82
  5. Step 5: Solve for x
    x = 4,778,542,455.82/76,879.08
  6. Step 6: Final answer
    x = 62,156.60

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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.