Home / 53,409.24-80,113.76-20,136.77

Finding the Fourth Proportional to 53,409.24, 80,113.76 and 20,136.77

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Solution

The fourth proportional to 53,409.24, 80,113.76 and 20,136.77 is: 30,205.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,409.24 : 80,113.76 = 20,136.77 : x
  2. Step 2: Convert to fraction form
    53,409.24/80,113.76 = 20,136.77/x
  3. Step 3: Cross multiply
    53,409.24x = 80,113.76 × 20,136.77
  4. Step 4: Simplify right side
    53,409.24x = 1,613,232,358.96
  5. Step 5: Solve for x
    x = 1,613,232,358.96/53,409.24
  6. Step 6: Final answer
    x = 30,205.12

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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.