Finding the Fourth Proportional to 93,787.86, 129,413.28 and 56,974.98
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Solution
The fourth proportional to 93,787.86, 129,413.28 and 56,974.98 is: 78,616.99
Step by Step Solution
- Step 1: Write the proportion equation
93,787.86 : 129,413.28 = 56,974.98 : x - Step 2: Convert to fraction form
93,787.86/129,413.28 = 56,974.98/x - Step 3: Cross multiply
93,787.86x = 129,413.28 × 56,974.98 - Step 4: Simplify right side
93,787.86x = 7,373,319,039.73 - Step 5: Solve for x
x = 7,373,319,039.73/93,787.86 - Step 6: Final answer
x = 78,616.99
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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.