Home / 74,291.02-102,520.74-40,298.86

Finding the Fourth Proportional to 74,291.02, 102,520.74 and 40,298.86

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Solution

The fourth proportional to 74,291.02, 102,520.74 and 40,298.86 is: 55,611.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,291.02 : 102,520.74 = 40,298.86 : x
  2. Step 2: Convert to fraction form
    74,291.02/102,520.74 = 40,298.86/x
  3. Step 3: Cross multiply
    74,291.02x = 102,520.74 × 40,298.86
  4. Step 4: Simplify right side
    74,291.02x = 4,131,468,948.36
  5. Step 5: Solve for x
    x = 4,131,468,948.36/74,291.02
  6. Step 6: Final answer
    x = 55,611.96

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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.