Home / 74,540.21-111,810.32-51,095.57

Finding the Fourth Proportional to 74,540.21, 111,810.32 and 51,095.57

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Solution

The fourth proportional to 74,540.21, 111,810.32 and 51,095.57 is: 76,643.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,540.21 : 111,810.32 = 51,095.57 : x
  2. Step 2: Convert to fraction form
    74,540.21/111,810.32 = 51,095.57/x
  3. Step 3: Cross multiply
    74,540.21x = 111,810.32 × 51,095.57
  4. Step 4: Simplify right side
    74,540.21x = 5,713,011,776.80
  5. Step 5: Solve for x
    x = 5,713,011,776.80/74,540.21
  6. Step 6: Final answer
    x = 76,643.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.