Home / 74,045.67-102,185.37-40,511.67

Finding the Fourth Proportional to 74,045.67, 102,185.37 and 40,511.67

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Solution

The fourth proportional to 74,045.67, 102,185.37 and 40,511.67 is: 55,907.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,045.67 : 102,185.37 = 40,511.67 : x
  2. Step 2: Convert to fraction form
    74,045.67/102,185.37 = 40,511.67/x
  3. Step 3: Cross multiply
    74,045.67x = 102,185.37 × 40,511.67
  4. Step 4: Simplify right side
    74,045.67x = 4,139,699,988.27
  5. Step 5: Solve for x
    x = 4,139,699,988.27/74,045.67
  6. Step 6: Final answer
    x = 55,907.39

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1.5x scale

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.