Home / 55,728.03-76,903.35-30,863.49

Finding the Fourth Proportional to 55,728.03, 76,903.35 and 30,863.49

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Solution

The fourth proportional to 55,728.03, 76,903.35 and 30,863.49 is: 42,590.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,728.03 : 76,903.35 = 30,863.49 : x
  2. Step 2: Convert to fraction form
    55,728.03/76,903.35 = 30,863.49/x
  3. Step 3: Cross multiply
    55,728.03x = 76,903.35 × 30,863.49
  4. Step 4: Simplify right side
    55,728.03x = 2,373,505,510.44
  5. Step 5: Solve for x
    x = 2,373,505,510.44/55,728.03
  6. Step 6: Final answer
    x = 42,590.88

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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.