Home / 74,705.09-103,091.69-40,713.89

Finding the Fourth Proportional to 74,705.09, 103,091.69 and 40,713.89

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Solution

The fourth proportional to 74,705.09, 103,091.69 and 40,713.89 is: 56,184.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,705.09 : 103,091.69 = 40,713.89 : x
  2. Step 2: Convert to fraction form
    74,705.09/103,091.69 = 40,713.89/x
  3. Step 3: Cross multiply
    74,705.09x = 103,091.69 × 40,713.89
  4. Step 4: Simplify right side
    74,705.09x = 4,197,263,663.78
  5. Step 5: Solve for x
    x = 4,197,263,663.78/74,705.09
  6. Step 6: Final answer
    x = 56,184.44

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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.