Home / 49,381.12-68,145.36-28,160.32

Finding the Fourth Proportional to 49,381.12, 68,145.36 and 28,160.32

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Solution

The fourth proportional to 49,381.12, 68,145.36 and 28,160.32 is: 38,860.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,381.12 : 68,145.36 = 28,160.32 : x
  2. Step 2: Convert to fraction form
    49,381.12/68,145.36 = 28,160.32/x
  3. Step 3: Cross multiply
    49,381.12x = 68,145.36 × 28,160.32
  4. Step 4: Simplify right side
    49,381.12x = 1,918,995,144.12
  5. Step 5: Solve for x
    x = 1,918,995,144.12/49,381.12
  6. Step 6: Final answer
    x = 38,860.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.