Finding the Fourth Proportional to 77,177.18, 106,470.71 and 45,331.72
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Solution
The fourth proportional to 77,177.18, 106,470.71 and 45,331.72 is: 62,537.92
Step by Step Solution
- Step 1: Write the proportion equation
77,177.18 : 106,470.71 = 45,331.72 : x - Step 2: Convert to fraction form
77,177.18/106,470.71 = 45,331.72/x - Step 3: Cross multiply
77,177.18x = 106,470.71 × 45,331.72 - Step 4: Simplify right side
77,177.18x = 4,826,500,413.92 - Step 5: Solve for x
x = 4,826,500,413.92/77,177.18 - Step 6: Final answer
x = 62,537.92
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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.