Home / 74,046.67-102,186.75-40,512.67

Finding the Fourth Proportional to 74,046.67, 102,186.75 and 40,512.67

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Solution

The fourth proportional to 74,046.67, 102,186.75 and 40,512.67 is: 55,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,046.67 : 102,186.75 = 40,512.67 : x
  2. Step 2: Convert to fraction form
    74,046.67/102,186.75 = 40,512.67/x
  3. Step 3: Cross multiply
    74,046.67x = 102,186.75 × 40,512.67
  4. Step 4: Simplify right side
    74,046.67x = 4,139,858,081.12
  5. Step 5: Solve for x
    x = 4,139,858,081.12/74,046.67
  6. Step 6: Final answer
    x = 55,908.77

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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.