Home / 74,170.60-102,353.70-40,635.88

Finding the Fourth Proportional to 74,170.60, 102,353.70 and 40,635.88

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Solution

The fourth proportional to 74,170.60, 102,353.70 and 40,635.88 is: 56,076.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,170.60 : 102,353.70 = 40,635.88 : x
  2. Step 2: Convert to fraction form
    74,170.60/102,353.70 = 40,635.88/x
  3. Step 3: Cross multiply
    74,170.60x = 102,353.70 × 40,635.88
  4. Step 4: Simplify right side
    74,170.60x = 4,159,232,670.76
  5. Step 5: Solve for x
    x = 4,159,232,670.76/74,170.60
  6. Step 6: Final answer
    x = 56,076.57

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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.