Home / 74,653.55-103,021.03-40,661.93

Finding the Fourth Proportional to 74,653.55, 103,021.03 and 40,661.93

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Solution

The fourth proportional to 74,653.55, 103,021.03 and 40,661.93 is: 56,112.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,653.55 : 103,021.03 = 40,661.93 : x
  2. Step 2: Convert to fraction form
    74,653.55/103,021.03 = 40,661.93/x
  3. Step 3: Cross multiply
    74,653.55x = 103,021.03 × 40,661.93
  4. Step 4: Simplify right side
    74,653.55x = 4,189,034,167.94
  5. Step 5: Solve for x
    x = 4,189,034,167.94/74,653.55
  6. Step 6: Final answer
    x = 56,112.99

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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.