Home / 74,031.75-102,166.25-40,497.75

Finding the Fourth Proportional to 74,031.75, 102,166.25 and 40,497.75

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Solution

The fourth proportional to 74,031.75, 102,166.25 and 40,497.75 is: 55,888.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,031.75 : 102,166.25 = 40,497.75 : x
  2. Step 2: Convert to fraction form
    74,031.75/102,166.25 = 40,497.75/x
  3. Step 3: Cross multiply
    74,031.75x = 102,166.25 × 40,497.75
  4. Step 4: Simplify right side
    74,031.75x = 4,137,503,048.45
  5. Step 5: Solve for x
    x = 4,137,503,048.45/74,031.75
  6. Step 6: Final answer
    x = 55,888.22

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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.