Home / 74,914.49-103,379.56-42,647.13

Finding the Fourth Proportional to 74,914.49, 103,379.56 and 42,647.13

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Solution

The fourth proportional to 74,914.49, 103,379.56 and 42,647.13 is: 58,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,914.49 : 103,379.56 = 42,647.13 : x
  2. Step 2: Convert to fraction form
    74,914.49/103,379.56 = 42,647.13/x
  3. Step 3: Cross multiply
    74,914.49x = 103,379.56 × 42,647.13
  4. Step 4: Simplify right side
    74,914.49x = 4,408,841,428.04
  5. Step 5: Solve for x
    x = 4,408,841,428.04/74,914.49
  6. Step 6: Final answer
    x = 58,851.65

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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.