Home / 51,128.64-76,711.44-17,853.63

Finding the Fourth Proportional to 51,128.64, 76,711.44 and 17,853.63

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Solution

The fourth proportional to 51,128.64, 76,711.44 and 17,853.63 is: 26,786.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,128.64 : 76,711.44 = 17,853.63 : x
  2. Step 2: Convert to fraction form
    51,128.64/76,711.44 = 17,853.63/x
  3. Step 3: Cross multiply
    51,128.64x = 76,711.44 × 17,853.63
  4. Step 4: Simplify right side
    51,128.64x = 1,369,577,666.53
  5. Step 5: Solve for x
    x = 1,369,577,666.53/51,128.64
  6. Step 6: Final answer
    x = 26,786.90

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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.