Finding the Fourth Proportional to 93,781.14, 129,418.19 and 51,342.40
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Solution
The fourth proportional to 93,781.14, 129,418.19 and 51,342.40 is: 70,852.63
Step by Step Solution
- Step 1: Write the proportion equation
93,781.14 : 129,418.19 = 51,342.40 : x - Step 2: Convert to fraction form
93,781.14/129,418.19 = 51,342.40/x - Step 3: Cross multiply
93,781.14x = 129,418.19 × 51,342.40 - Step 4: Simplify right side
93,781.14x = 6,644,640,478.26 - Step 5: Solve for x
x = 6,644,640,478.26/93,781.14 - Step 6: Final answer
x = 70,852.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.