Home / 85,124-127,686-26,756

Finding the Fourth Proportional to 85,124, 127,686 and 26,756

Calculator

Solution

The fourth proportional to 85,124, 127,686 and 26,756 is: 40,134

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,124 : 127,686 = 26,756 : x
  2. Step 2: Convert to fraction form
    85,124/127,686 = 26,756/x
  3. Step 3: Cross multiply
    85,124x = 127,686 × 26,756
  4. Step 4: Simplify right side
    85,124x = 3,416,366,616
  5. Step 5: Solve for x
    x = 3,416,366,616/85,124
  6. Step 6: Final answer
    x = 40,134

Related Problems

Find fourth proportional to 42,562, 63,843 and 13,378
Half scale
Find fourth proportional to 170,248, 255,372 and 53,512
Double scale
Find fourth proportional to 85,125, 127,687.50 and 26,757
Similar ratio
Find fourth proportional to 127,686, 191,529 and 40,134
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.