Finding the Fourth Proportional to 77,822.34, 107,397.71 and 43,370.19
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Solution
The fourth proportional to 77,822.34, 107,397.71 and 43,370.19 is: 59,852.47
Step by Step Solution
- Step 1: Write the proportion equation
77,822.34 : 107,397.71 = 43,370.19 : x - Step 2: Convert to fraction form
77,822.34/107,397.71 = 43,370.19/x - Step 3: Cross multiply
77,822.34x = 107,397.71 × 43,370.19 - Step 4: Simplify right side
77,822.34x = 4,657,859,088.26 - Step 5: Solve for x
x = 4,657,859,088.26/77,822.34 - Step 6: Final answer
x = 59,852.47
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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.