Finding the Fourth Proportional to 69,058.99, 103,588.18 and 19,138.94
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Solution
The fourth proportional to 69,058.99, 103,588.18 and 19,138.94 is: 28,708.33
Step by Step Solution
- Step 1: Write the proportion equation
69,058.99 : 103,588.18 = 19,138.94 : x - Step 2: Convert to fraction form
69,058.99/103,588.18 = 19,138.94/x - Step 3: Cross multiply
69,058.99x = 103,588.18 × 19,138.94 - Step 4: Simplify right side
69,058.99x = 1,982,567,961.73 - Step 5: Solve for x
x = 1,982,567,961.73/69,058.99 - Step 6: Final answer
x = 28,708.33
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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.