Home / 74,630.72-102,987.24-42,777.44

Finding the Fourth Proportional to 74,630.72, 102,987.24 and 42,777.44

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Solution

The fourth proportional to 74,630.72, 102,987.24 and 42,777.44 is: 59,031.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,630.72 : 102,987.24 = 42,777.44 : x
  2. Step 2: Convert to fraction form
    74,630.72/102,987.24 = 42,777.44/x
  3. Step 3: Cross multiply
    74,630.72x = 102,987.24 × 42,777.44
  4. Step 4: Simplify right side
    74,630.72x = 4,405,530,479.87
  5. Step 5: Solve for x
    x = 4,405,530,479.87/74,630.72
  6. Step 6: Final answer
    x = 59,031.06

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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.