Home / 55,443.43-76,512.67-31,570.20

Finding the Fourth Proportional to 55,443.43, 76,512.67 and 31,570.20

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Solution

The fourth proportional to 55,443.43, 76,512.67 and 31,570.20 is: 43,567.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,443.43 : 76,512.67 = 31,570.20 : x
  2. Step 2: Convert to fraction form
    55,443.43/76,512.67 = 31,570.20/x
  3. Step 3: Cross multiply
    55,443.43x = 76,512.67 × 31,570.20
  4. Step 4: Simplify right side
    55,443.43x = 2,415,519,754.02
  5. Step 5: Solve for x
    x = 2,415,519,754.02/55,443.43
  6. Step 6: Final answer
    x = 43,567.29

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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.