Home / 82,638.36-123,965.74-26,464.36

Finding the Fourth Proportional to 82,638.36, 123,965.74 and 26,464.36

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Solution

The fourth proportional to 82,638.36, 123,965.74 and 26,464.36 is: 39,699.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,638.36 : 123,965.74 = 26,464.36 : x
  2. Step 2: Convert to fraction form
    82,638.36/123,965.74 = 26,464.36/x
  3. Step 3: Cross multiply
    82,638.36x = 123,965.74 × 26,464.36
  4. Step 4: Simplify right side
    82,638.36x = 3,280,673,971.03
  5. Step 5: Solve for x
    x = 3,280,673,971.03/82,638.36
  6. Step 6: Final answer
    x = 39,699.17

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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.