Home / 51,079.12-76,640.71-19,498.66

Finding the Fourth Proportional to 51,079.12, 76,640.71 and 19,498.66

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Solution

The fourth proportional to 51,079.12, 76,640.71 and 19,498.66 is: 29,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,079.12 : 76,640.71 = 19,498.66 : x
  2. Step 2: Convert to fraction form
    51,079.12/76,640.71 = 19,498.66/x
  3. Step 3: Cross multiply
    51,079.12x = 76,640.71 × 19,498.66
  4. Step 4: Simplify right side
    51,079.12x = 1,494,391,146.45
  5. Step 5: Solve for x
    x = 1,494,391,146.45/51,079.12
  6. Step 6: Final answer
    x = 29,256.40

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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.