Home / 74,217.89-102,409.76-45,131.42

Finding the Fourth Proportional to 74,217.89, 102,409.76 and 45,131.42

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Solution

The fourth proportional to 74,217.89, 102,409.76 and 45,131.42 is: 62,274.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,217.89 : 102,409.76 = 45,131.42 : x
  2. Step 2: Convert to fraction form
    74,217.89/102,409.76 = 45,131.42/x
  3. Step 3: Cross multiply
    74,217.89x = 102,409.76 × 45,131.42
  4. Step 4: Simplify right side
    74,217.89x = 4,621,897,665.00
  5. Step 5: Solve for x
    x = 4,621,897,665.00/74,217.89
  6. Step 6: Final answer
    x = 62,274.71

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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.