Home / 74,635.12-102,997.56-42,806.98

Finding the Fourth Proportional to 74,635.12, 102,997.56 and 42,806.98

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Solution

The fourth proportional to 74,635.12, 102,997.56 and 42,806.98 is: 59,074.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,635.12 : 102,997.56 = 42,806.98 : x
  2. Step 2: Convert to fraction form
    74,635.12/102,997.56 = 42,806.98/x
  3. Step 3: Cross multiply
    74,635.12x = 102,997.56 × 42,806.98
  4. Step 4: Simplify right side
    74,635.12x = 4,409,014,490.97
  5. Step 5: Solve for x
    x = 4,409,014,490.97/74,635.12
  6. Step 6: Final answer
    x = 59,074.26

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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.