Home / 55,622.22-76,758.78-30,128.48

Finding the Fourth Proportional to 55,622.22, 76,758.78 and 30,128.48

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Solution

The fourth proportional to 55,622.22, 76,758.78 and 30,128.48 is: 41,577.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,622.22 : 76,758.78 = 30,128.48 : x
  2. Step 2: Convert to fraction form
    55,622.22/76,758.78 = 30,128.48/x
  3. Step 3: Cross multiply
    55,622.22x = 76,758.78 × 30,128.48
  4. Step 4: Simplify right side
    55,622.22x = 2,312,625,368.05
  5. Step 5: Solve for x
    x = 2,312,625,368.05/55,622.22
  6. Step 6: Final answer
    x = 41,577.37

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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.