Home / 74,704.58-103,089.30-40,712.34

Finding the Fourth Proportional to 74,704.58, 103,089.30 and 40,712.34

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Solution

The fourth proportional to 74,704.58, 103,089.30 and 40,712.34 is: 56,181.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,704.58 : 103,089.30 = 40,712.34 : x
  2. Step 2: Convert to fraction form
    74,704.58/103,089.30 = 40,712.34/x
  3. Step 3: Cross multiply
    74,704.58x = 103,089.30 × 40,712.34
  4. Step 4: Simplify right side
    74,704.58x = 4,197,006,631.96
  5. Step 5: Solve for x
    x = 4,197,006,631.96/74,704.58
  6. Step 6: Final answer
    x = 56,181.39

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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.