Home / 74,023.72-102,153.54-40,032.86

Finding the Fourth Proportional to 74,023.72, 102,153.54 and 40,032.86

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Solution

The fourth proportional to 74,023.72, 102,153.54 and 40,032.86 is: 55,245.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,023.72 : 102,153.54 = 40,032.86 : x
  2. Step 2: Convert to fraction form
    74,023.72/102,153.54 = 40,032.86/x
  3. Step 3: Cross multiply
    74,023.72x = 102,153.54 × 40,032.86
  4. Step 4: Simplify right side
    74,023.72x = 4,089,498,365.32
  5. Step 5: Solve for x
    x = 4,089,498,365.32/74,023.72
  6. Step 6: Final answer
    x = 55,245.78

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1.5x scale

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.