Home / 74,546.82-102,820.86-42,704.10

Finding the Fourth Proportional to 74,546.82, 102,820.86 and 42,704.10

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Solution

The fourth proportional to 74,546.82, 102,820.86 and 42,704.10 is: 58,900.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,546.82 : 102,820.86 = 42,704.10 : x
  2. Step 2: Convert to fraction form
    74,546.82/102,820.86 = 42,704.10/x
  3. Step 3: Cross multiply
    74,546.82x = 102,820.86 × 42,704.10
  4. Step 4: Simplify right side
    74,546.82x = 4,390,872,287.53
  5. Step 5: Solve for x
    x = 4,390,872,287.53/74,546.82
  6. Step 6: Final answer
    x = 58,900.87

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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.