Home / 55,087.56-82,636.78-17,638.20

Finding the Fourth Proportional to 55,087.56, 82,636.78 and 17,638.20

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Solution

The fourth proportional to 55,087.56, 82,636.78 and 17,638.20 is: 26,459.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,087.56 : 82,636.78 = 17,638.20 : x
  2. Step 2: Convert to fraction form
    55,087.56/82,636.78 = 17,638.20/x
  3. Step 3: Cross multiply
    55,087.56x = 82,636.78 × 17,638.20
  4. Step 4: Simplify right side
    55,087.56x = 1,457,564,053.00
  5. Step 5: Solve for x
    x = 1,457,564,053.00/55,087.56
  6. Step 6: Final answer
    x = 26,459.04

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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.