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Finding the Fourth Proportional to 61,664.34, 92,501.88 and 21,679.92

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Solution

The fourth proportional to 61,664.34, 92,501.88 and 21,679.92 is: 32,521.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,664.34 : 92,501.88 = 21,679.92 : x
  2. Step 2: Convert to fraction form
    61,664.34/92,501.88 = 21,679.92/x
  3. Step 3: Cross multiply
    61,664.34x = 92,501.88 × 21,679.92
  4. Step 4: Simplify right side
    61,664.34x = 2,005,433,358.25
  5. Step 5: Solve for x
    x = 2,005,433,358.25/61,664.34
  6. Step 6: Final answer
    x = 32,521.77

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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.