Home / 74,031.48-102,164.94-40,499.64

Finding the Fourth Proportional to 74,031.48, 102,164.94 and 40,499.64

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Solution

The fourth proportional to 74,031.48, 102,164.94 and 40,499.64 is: 55,890.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,031.48 : 102,164.94 = 40,499.64 : x
  2. Step 2: Convert to fraction form
    74,031.48/102,164.94 = 40,499.64/x
  3. Step 3: Cross multiply
    74,031.48x = 102,164.94 × 40,499.64
  4. Step 4: Simplify right side
    74,031.48x = 4,137,643,290.62
  5. Step 5: Solve for x
    x = 4,137,643,290.62/74,031.48
  6. Step 6: Final answer
    x = 55,890.32

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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.