Finding the Fourth Proportional to 77,427.83, 106,737.29 and 54,726.77
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Solution
The fourth proportional to 77,427.83, 106,737.29 and 54,726.77 is: 75,442.99
Step by Step Solution
- Step 1: Write the proportion equation
77,427.83 : 106,737.29 = 54,726.77 : x - Step 2: Convert to fraction form
77,427.83/106,737.29 = 54,726.77/x - Step 3: Cross multiply
77,427.83x = 106,737.29 × 54,726.77 - Step 4: Simplify right side
77,427.83x = 5,841,387,120.25 - Step 5: Solve for x
x = 5,841,387,120.25/77,427.83 - Step 6: Final answer
x = 75,442.99
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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.