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Finding the Fourth Proportional to 63,649.86, 87,838.19 and 34,969.89

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Solution

The fourth proportional to 63,649.86, 87,838.19 and 34,969.89 is: 48,259.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,649.86 : 87,838.19 = 34,969.89 : x
  2. Step 2: Convert to fraction form
    63,649.86/87,838.19 = 34,969.89/x
  3. Step 3: Cross multiply
    63,649.86x = 87,838.19 × 34,969.89
  4. Step 4: Simplify right side
    63,649.86x = 3,071,691,929.52
  5. Step 5: Solve for x
    x = 3,071,691,929.52/63,649.86
  6. Step 6: Final answer
    x = 48,259.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.