Finding the Fourth Proportional to 70,805.07, 106,207.11 and 28,684.53
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Solution
The fourth proportional to 70,805.07, 106,207.11 and 28,684.53 is: 43,026.59
Step by Step Solution
- Step 1: Write the proportion equation
70,805.07 : 106,207.11 = 28,684.53 : x - Step 2: Convert to fraction form
70,805.07/106,207.11 = 28,684.53/x - Step 3: Cross multiply
70,805.07x = 106,207.11 × 28,684.53 - Step 4: Simplify right side
70,805.07x = 3,046,501,033.01 - Step 5: Solve for x
x = 3,046,501,033.01/70,805.07 - Step 6: Final answer
x = 43,026.59
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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.