Home / 55,075.78-76,006.23-38,971.96

Finding the Fourth Proportional to 55,075.78, 76,006.23 and 38,971.96

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Solution

The fourth proportional to 55,075.78, 76,006.23 and 38,971.96 is: 53,782.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,075.78 : 76,006.23 = 38,971.96 : x
  2. Step 2: Convert to fraction form
    55,075.78/76,006.23 = 38,971.96/x
  3. Step 3: Cross multiply
    55,075.78x = 76,006.23 × 38,971.96
  4. Step 4: Simplify right side
    55,075.78x = 2,962,111,755.31
  5. Step 5: Solve for x
    x = 2,962,111,755.31/55,075.78
  6. Step 6: Final answer
    x = 53,782.47

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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.