Home / 55,622.81-76,759.03-30,128.59

Finding the Fourth Proportional to 55,622.81, 76,759.03 and 30,128.59

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Solution

The fourth proportional to 55,622.81, 76,759.03 and 30,128.59 is: 41,577.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,622.81 : 76,759.03 = 30,128.59 : x
  2. Step 2: Convert to fraction form
    55,622.81/76,759.03 = 30,128.59/x
  3. Step 3: Cross multiply
    55,622.81x = 76,759.03 × 30,128.59
  4. Step 4: Simplify right side
    55,622.81x = 2,312,640,809.23
  5. Step 5: Solve for x
    x = 2,312,640,809.23/55,622.81
  6. Step 6: Final answer
    x = 41,577.20

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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.