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Finding the Fourth Proportional to 56,376.57, 84,571.80 and 18,424.94

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Solution

The fourth proportional to 56,376.57, 84,571.80 and 18,424.94 is: 27,639.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,376.57 : 84,571.80 = 18,424.94 : x
  2. Step 2: Convert to fraction form
    56,376.57/84,571.80 = 18,424.94/x
  3. Step 3: Cross multiply
    56,376.57x = 84,571.80 × 18,424.94
  4. Step 4: Simplify right side
    56,376.57x = 1,558,229,848.74
  5. Step 5: Solve for x
    x = 1,558,229,848.74/56,376.57
  6. Step 6: Final answer
    x = 27,639.67

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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.