Home / 69,036.97-103,555.73-21,006.06

Finding the Fourth Proportional to 69,036.97, 103,555.73 and 21,006.06

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Solution

The fourth proportional to 69,036.97, 103,555.73 and 21,006.06 is: 31,509.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,036.97 : 103,555.73 = 21,006.06 : x
  2. Step 2: Convert to fraction form
    69,036.97/103,555.73 = 21,006.06/x
  3. Step 3: Cross multiply
    69,036.97x = 103,555.73 × 21,006.06
  4. Step 4: Simplify right side
    69,036.97x = 2,175,297,877.72
  5. Step 5: Solve for x
    x = 2,175,297,877.72/69,036.97
  6. Step 6: Final answer
    x = 31,509.17

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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.