Home / 74,703.03-103,086.51-40,711.42

Finding the Fourth Proportional to 74,703.03, 103,086.51 and 40,711.42

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Solution

The fourth proportional to 74,703.03, 103,086.51 and 40,711.42 is: 56,179.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,703.03 : 103,086.51 = 40,711.42 : x
  2. Step 2: Convert to fraction form
    74,703.03/103,086.51 = 40,711.42/x
  3. Step 3: Cross multiply
    74,703.03x = 103,086.51 × 40,711.42
  4. Step 4: Simplify right side
    74,703.03x = 4,196,798,204.94
  5. Step 5: Solve for x
    x = 4,196,798,204.94/74,703.03
  6. Step 6: Final answer
    x = 56,179.76

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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.