Home / 74,074.23-102,221.73-40,081.98

Finding the Fourth Proportional to 74,074.23, 102,221.73 and 40,081.98

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Solution

The fourth proportional to 74,074.23, 102,221.73 and 40,081.98 is: 55,312.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,074.23 : 102,221.73 = 40,081.98 : x
  2. Step 2: Convert to fraction form
    74,074.23/102,221.73 = 40,081.98/x
  3. Step 3: Cross multiply
    74,074.23x = 102,221.73 × 40,081.98
  4. Step 4: Simplify right side
    74,074.23x = 4,097,249,337.43
  5. Step 5: Solve for x
    x = 4,097,249,337.43/74,074.23
  6. Step 6: Final answer
    x = 55,312.75

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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.