Home / 85,190.22-127,780.70-26,021.25

Finding the Fourth Proportional to 85,190.22, 127,780.70 and 26,021.25

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Solution

The fourth proportional to 85,190.22, 127,780.70 and 26,021.25 is: 39,030.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,190.22 : 127,780.70 = 26,021.25 : x
  2. Step 2: Convert to fraction form
    85,190.22/127,780.70 = 26,021.25/x
  3. Step 3: Cross multiply
    85,190.22x = 127,780.70 × 26,021.25
  4. Step 4: Simplify right side
    85,190.22x = 3,325,013,409.77
  5. Step 5: Solve for x
    x = 3,325,013,409.77/85,190.22
  6. Step 6: Final answer
    x = 39,030.46

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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.