Home / 84,745.85-127,112.59-39,777.46

Finding the Fourth Proportional to 84,745.85, 127,112.59 and 39,777.46

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Solution

The fourth proportional to 84,745.85, 127,112.59 and 39,777.46 is: 59,663.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,745.85 : 127,112.59 = 39,777.46 : x
  2. Step 2: Convert to fraction form
    84,745.85/127,112.59 = 39,777.46/x
  3. Step 3: Cross multiply
    84,745.85x = 127,112.59 × 39,777.46
  4. Step 4: Simplify right side
    84,745.85x = 5,056,215,964.22
  5. Step 5: Solve for x
    x = 5,056,215,964.22/84,745.85
  6. Step 6: Final answer
    x = 59,663.29

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1.5x scale

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.