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Finding the Fourth Proportional to 56,073, 84,122.88 and 19,137

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Solution

The fourth proportional to 56,073, 84,122.88 and 19,137 is: 28,710.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,073 : 84,122.88 = 19,137 : x
  2. Step 2: Convert to fraction form
    56,073/84,122.88 = 19,137/x
  3. Step 3: Cross multiply
    56,073x = 84,122.88 × 19,137
  4. Step 4: Simplify right side
    56,073x = 1,609,859,554.56
  5. Step 5: Solve for x
    x = 1,609,859,554.56/56,073
  6. Step 6: Final answer
    x = 28,710.07

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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.