Home / 64,682.09-89,261.15-36,387.78

Finding the Fourth Proportional to 64,682.09, 89,261.15 and 36,387.78

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Solution

The fourth proportional to 64,682.09, 89,261.15 and 36,387.78 is: 50,215.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,682.09 : 89,261.15 = 36,387.78 : x
  2. Step 2: Convert to fraction form
    64,682.09/89,261.15 = 36,387.78/x
  3. Step 3: Cross multiply
    64,682.09x = 89,261.15 × 36,387.78
  4. Step 4: Simplify right side
    64,682.09x = 3,248,015,179.72
  5. Step 5: Solve for x
    x = 3,248,015,179.72/64,682.09
  6. Step 6: Final answer
    x = 50,215.06

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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.