Home / 74,634.12-102,996.18-42,805.98

Finding the Fourth Proportional to 74,634.12, 102,996.18 and 42,805.98

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Solution

The fourth proportional to 74,634.12, 102,996.18 and 42,805.98 is: 59,072.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,634.12 : 102,996.18 = 42,805.98 : x
  2. Step 2: Convert to fraction form
    74,634.12/102,996.18 = 42,805.98/x
  3. Step 3: Cross multiply
    74,634.12x = 102,996.18 × 42,805.98
  4. Step 4: Simplify right side
    74,634.12x = 4,408,852,421.16
  5. Step 5: Solve for x
    x = 4,408,852,421.16/74,634.12
  6. Step 6: Final answer
    x = 59,072.88

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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.