Home / 74,025.98-102,156.15-40,034.46

Finding the Fourth Proportional to 74,025.98, 102,156.15 and 40,034.46

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Solution

The fourth proportional to 74,025.98, 102,156.15 and 40,034.46 is: 55,247.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,025.98 : 102,156.15 = 40,034.46 : x
  2. Step 2: Convert to fraction form
    74,025.98/102,156.15 = 40,034.46/x
  3. Step 3: Cross multiply
    74,025.98x = 102,156.15 × 40,034.46
  4. Step 4: Simplify right side
    74,025.98x = 4,089,766,100.76
  5. Step 5: Solve for x
    x = 4,089,766,100.76/74,025.98
  6. Step 6: Final answer
    x = 55,247.72

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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.