Home / 76,054.20-113,970.36-42,783.54

Finding the Fourth Proportional to 76,054.20, 113,970.36 and 42,783.54

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Solution

The fourth proportional to 76,054.20, 113,970.36 and 42,783.54 is: 64,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,054.20 : 113,970.36 = 42,783.54 : x
  2. Step 2: Convert to fraction form
    76,054.20/113,970.36 = 42,783.54/x
  3. Step 3: Cross multiply
    76,054.20x = 113,970.36 × 42,783.54
  4. Step 4: Simplify right side
    76,054.20x = 4,876,055,455.87
  5. Step 5: Solve for x
    x = 4,876,055,455.87/76,054.20
  6. Step 6: Final answer
    x = 64,112.90

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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.