Home / 76,883.56-106,021.70-51,389.98

Finding the Fourth Proportional to 76,883.56, 106,021.70 and 51,389.98

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Solution

The fourth proportional to 76,883.56, 106,021.70 and 51,389.98 is: 70,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,883.56 : 106,021.70 = 51,389.98 : x
  2. Step 2: Convert to fraction form
    76,883.56/106,021.70 = 51,389.98/x
  3. Step 3: Cross multiply
    76,883.56x = 106,021.70 × 51,389.98
  4. Step 4: Simplify right side
    76,883.56x = 5,448,453,042.57
  5. Step 5: Solve for x
    x = 5,448,453,042.57/76,883.56
  6. Step 6: Final answer
    x = 70,866.29

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1.5x scale

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.