Home / 74,125.91-102,291.86-41,420.60

Finding the Fourth Proportional to 74,125.91, 102,291.86 and 41,420.60

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Solution

The fourth proportional to 74,125.91, 102,291.86 and 41,420.60 is: 57,159.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,125.91 : 102,291.86 = 41,420.60 : x
  2. Step 2: Convert to fraction form
    74,125.91/102,291.86 = 41,420.60/x
  3. Step 3: Cross multiply
    74,125.91x = 102,291.86 × 41,420.60
  4. Step 4: Simplify right side
    74,125.91x = 4,236,989,704.86
  5. Step 5: Solve for x
    x = 4,236,989,704.86/74,125.91
  6. Step 6: Final answer
    x = 57,159.36

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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.