Home / 69,020.09-103,345.59-39,397.17

Finding the Fourth Proportional to 69,020.09, 103,345.59 and 39,397.17

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Solution

The fourth proportional to 69,020.09, 103,345.59 and 39,397.17 is: 58,990.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,020.09 : 103,345.59 = 39,397.17 : x
  2. Step 2: Convert to fraction form
    69,020.09/103,345.59 = 39,397.17/x
  3. Step 3: Cross multiply
    69,020.09x = 103,345.59 × 39,397.17
  4. Step 4: Simplify right side
    69,020.09x = 4,071,523,777.98
  5. Step 5: Solve for x
    x = 4,071,523,777.98/69,020.09
  6. Step 6: Final answer
    x = 58,990.42

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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.