Home / 91,816.63-137,783.20-39,226.51

Finding the Fourth Proportional to 91,816.63, 137,783.20 and 39,226.51

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Solution

The fourth proportional to 91,816.63, 137,783.20 and 39,226.51 is: 58,864.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,816.63 : 137,783.20 = 39,226.51 : x
  2. Step 2: Convert to fraction form
    91,816.63/137,783.20 = 39,226.51/x
  3. Step 3: Cross multiply
    91,816.63x = 137,783.20 × 39,226.51
  4. Step 4: Simplify right side
    91,816.63x = 5,404,754,072.63
  5. Step 5: Solve for x
    x = 5,404,754,072.63/91,816.63
  6. Step 6: Final answer
    x = 58,864.65

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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.