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Finding the Fourth Proportional to 72,676.90, 100,295.58 and 40,848.04

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Solution

The fourth proportional to 72,676.90, 100,295.58 and 40,848.04 is: 56,371.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,676.90 : 100,295.58 = 40,848.04 : x
  2. Step 2: Convert to fraction form
    72,676.90/100,295.58 = 40,848.04/x
  3. Step 3: Cross multiply
    72,676.90x = 100,295.58 × 40,848.04
  4. Step 4: Simplify right side
    72,676.90x = 4,096,877,863.66
  5. Step 5: Solve for x
    x = 4,096,877,863.66/72,676.90
  6. Step 6: Final answer
    x = 56,371.11

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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.