Home / 76,712.09-115,014.65-33,994.31

Finding the Fourth Proportional to 76,712.09, 115,014.65 and 33,994.31

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Solution

The fourth proportional to 76,712.09, 115,014.65 and 33,994.31 is: 50,967.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,712.09 : 115,014.65 = 33,994.31 : x
  2. Step 2: Convert to fraction form
    76,712.09/115,014.65 = 33,994.31/x
  3. Step 3: Cross multiply
    76,712.09x = 115,014.65 × 33,994.31
  4. Step 4: Simplify right side
    76,712.09x = 3,909,842,921.60
  5. Step 5: Solve for x
    x = 3,909,842,921.60/76,712.09
  6. Step 6: Final answer
    x = 50,967.76

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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.