Home / 74,026.28-102,155.96-40,034.80

Finding the Fourth Proportional to 74,026.28, 102,155.96 and 40,034.80

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Solution

The fourth proportional to 74,026.28, 102,155.96 and 40,034.80 is: 55,247.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,026.28 : 102,155.96 = 40,034.80 : x
  2. Step 2: Convert to fraction form
    74,026.28/102,155.96 = 40,034.80/x
  3. Step 3: Cross multiply
    74,026.28x = 102,155.96 × 40,034.80
  4. Step 4: Simplify right side
    74,026.28x = 4,089,793,272.11
  5. Step 5: Solve for x
    x = 4,089,793,272.11/74,026.28
  6. Step 6: Final answer
    x = 55,247.86

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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.