Home / 45,356.25-68,011.05-20,374.87

Finding the Fourth Proportional to 45,356.25, 68,011.05 and 20,374.87

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Solution

The fourth proportional to 45,356.25, 68,011.05 and 20,374.87 is: 30,551.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,356.25 : 68,011.05 = 20,374.87 : x
  2. Step 2: Convert to fraction form
    45,356.25/68,011.05 = 20,374.87/x
  3. Step 3: Cross multiply
    45,356.25x = 68,011.05 × 20,374.87
  4. Step 4: Simplify right side
    45,356.25x = 1,385,716,302.31
  5. Step 5: Solve for x
    x = 1,385,716,302.31/45,356.25
  6. Step 6: Final answer
    x = 30,551.83

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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.