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Finding the Fourth Proportional to 42,183, 63,285.08 and 12,600.72

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Solution

The fourth proportional to 42,183, 63,285.08 and 12,600.72 is: 18,904.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,183 : 63,285.08 = 12,600.72 : x
  2. Step 2: Convert to fraction form
    42,183/63,285.08 = 12,600.72/x
  3. Step 3: Cross multiply
    42,183x = 63,285.08 × 12,600.72
  4. Step 4: Simplify right side
    42,183x = 797,437,573.26
  5. Step 5: Solve for x
    x = 797,437,573.26/42,183
  6. Step 6: Final answer
    x = 18,904.24

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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.