Home / 55,073.78-76,003.47-38,969.96

Finding the Fourth Proportional to 55,073.78, 76,003.47 and 38,969.96

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Solution

The fourth proportional to 55,073.78, 76,003.47 and 38,969.96 is: 53,779.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,073.78 : 76,003.47 = 38,969.96 : x
  2. Step 2: Convert to fraction form
    55,073.78/76,003.47 = 38,969.96/x
  3. Step 3: Cross multiply
    55,073.78x = 76,003.47 × 38,969.96
  4. Step 4: Simplify right side
    55,073.78x = 2,961,852,185.76
  5. Step 5: Solve for x
    x = 2,961,852,185.76/55,073.78
  6. Step 6: Final answer
    x = 53,779.71

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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.