Home / 109,359.59-164,039.45-30,475.89

Finding the Fourth Proportional to 109,359.59, 164,039.45 and 30,475.89

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Solution

The fourth proportional to 109,359.59, 164,039.45 and 30,475.89 is: 45,713.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,359.59 : 164,039.45 = 30,475.89 : x
  2. Step 2: Convert to fraction form
    109,359.59/164,039.45 = 30,475.89/x
  3. Step 3: Cross multiply
    109,359.59x = 164,039.45 × 30,475.89
  4. Step 4: Simplify right side
    109,359.59x = 4,999,248,081.48
  5. Step 5: Solve for x
    x = 4,999,248,081.48/109,359.59
  6. Step 6: Final answer
    x = 45,713.85

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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.