Home / 40,076.12-60,128.00-17,904.80

Finding the Fourth Proportional to 40,076.12, 60,128.00 and 17,904.80

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Solution

The fourth proportional to 40,076.12, 60,128.00 and 17,904.80 is: 26,863.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,076.12 : 60,128.00 = 17,904.80 : x
  2. Step 2: Convert to fraction form
    40,076.12/60,128.00 = 17,904.80/x
  3. Step 3: Cross multiply
    40,076.12x = 60,128.00 × 17,904.80
  4. Step 4: Simplify right side
    40,076.12x = 1,076,579,424.24
  5. Step 5: Solve for x
    x = 1,076,579,424.24/40,076.12
  6. Step 6: Final answer
    x = 26,863.37

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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.