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Finding the Fourth Proportional to 63,126.72, 94,670.64 and 21,564

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Solution

The fourth proportional to 63,126.72, 94,670.64 and 21,564 is: 32,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,126.72 : 94,670.64 = 21,564 : x
  2. Step 2: Convert to fraction form
    63,126.72/94,670.64 = 21,564/x
  3. Step 3: Cross multiply
    63,126.72x = 94,670.64 × 21,564
  4. Step 4: Simplify right side
    63,126.72x = 2,041,477,680.96
  5. Step 5: Solve for x
    x = 2,041,477,680.96/63,126.72
  6. Step 6: Final answer
    x = 32,339.36

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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.