Home / 53,745.45-80,653.29-20,465.84

Finding the Fourth Proportional to 53,745.45, 80,653.29 and 20,465.84

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Solution

The fourth proportional to 53,745.45, 80,653.29 and 20,465.84 is: 30,712.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,745.45 : 80,653.29 = 20,465.84 : x
  2. Step 2: Convert to fraction form
    53,745.45/80,653.29 = 20,465.84/x
  3. Step 3: Cross multiply
    53,745.45x = 80,653.29 × 20,465.84
  4. Step 4: Simplify right side
    53,745.45x = 1,650,637,399.34
  5. Step 5: Solve for x
    x = 1,650,637,399.34/53,745.45
  6. Step 6: Final answer
    x = 30,712.13

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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.