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Finding the Fourth Proportional to 61,663, 92,509.08 and 20,110

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Solution

The fourth proportional to 61,663, 92,509.08 and 20,110 is: 30,169.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,663 : 92,509.08 = 20,110 : x
  2. Step 2: Convert to fraction form
    61,663/92,509.08 = 20,110/x
  3. Step 3: Cross multiply
    61,663x = 92,509.08 × 20,110
  4. Step 4: Simplify right side
    61,663x = 1,860,357,598.80
  5. Step 5: Solve for x
    x = 1,860,357,598.80/61,663
  6. Step 6: Final answer
    x = 30,169.75

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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.