Home / 61,248-91,872-19,695

Finding the Fourth Proportional to 61,248, 91,872 and 19,695

Calculator

Solution

The fourth proportional to 61,248, 91,872 and 19,695 is: 29,542.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,248 : 91,872 = 19,695 : x
  2. Step 2: Convert to fraction form
    61,248/91,872 = 19,695/x
  3. Step 3: Cross multiply
    61,248x = 91,872 × 19,695
  4. Step 4: Simplify right side
    61,248x = 1,809,419,040
  5. Step 5: Solve for x
    x = 1,809,419,040/61,248
  6. Step 6: Final answer
    x = 29,542.50

Related Problems

Find fourth proportional to 30,624, 45,936 and 9,847.50
Half scale
Find fourth proportional to 122,496, 183,744 and 39,390
Double scale
Find fourth proportional to 61,249, 91,873.50 and 19,696
Similar ratio
Find fourth proportional to 91,872, 137,808 and 29,542.50
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.