Home / 79,420.83-109,610.62-45,424.60

Finding the Fourth Proportional to 79,420.83, 109,610.62 and 45,424.60

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Solution

The fourth proportional to 79,420.83, 109,610.62 and 45,424.60 is: 62,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,420.83 : 109,610.62 = 45,424.60 : x
  2. Step 2: Convert to fraction form
    79,420.83/109,610.62 = 45,424.60/x
  3. Step 3: Cross multiply
    79,420.83x = 109,610.62 × 45,424.60
  4. Step 4: Simplify right side
    79,420.83x = 4,979,018,592.70
  5. Step 5: Solve for x
    x = 4,979,018,592.70/79,420.83
  6. Step 6: Final answer
    x = 62,691.60

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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.