Home / 55,215.13-82,820.86-17,777.33

Finding the Fourth Proportional to 55,215.13, 82,820.86 and 17,777.33

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Solution

The fourth proportional to 55,215.13, 82,820.86 and 17,777.33 is: 26,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,215.13 : 82,820.86 = 17,777.33 : x
  2. Step 2: Convert to fraction form
    55,215.13/82,820.86 = 17,777.33/x
  3. Step 3: Cross multiply
    55,215.13x = 82,820.86 × 17,777.33
  4. Step 4: Simplify right side
    55,215.13x = 1,472,333,759.10
  5. Step 5: Solve for x
    x = 1,472,333,759.10/55,215.13
  6. Step 6: Final answer
    x = 26,665.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.