Home / 40,759.36-61,131.26-12,679.76

Finding the Fourth Proportional to 40,759.36, 61,131.26 and 12,679.76

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Solution

The fourth proportional to 40,759.36, 61,131.26 and 12,679.76 is: 19,017.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,759.36 : 61,131.26 = 12,679.76 : x
  2. Step 2: Convert to fraction form
    40,759.36/61,131.26 = 12,679.76/x
  3. Step 3: Cross multiply
    40,759.36x = 61,131.26 × 12,679.76
  4. Step 4: Simplify right side
    40,759.36x = 775,129,683.83
  5. Step 5: Solve for x
    x = 775,129,683.83/40,759.36
  6. Step 6: Final answer
    x = 19,017.22

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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.