Finding the Fourth Proportional to 99,360.74, 137,137.29 and 56,947.70
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Solution
The fourth proportional to 99,360.74, 137,137.29 and 56,947.70 is: 78,598.98
Step by Step Solution
- Step 1: Write the proportion equation
99,360.74 : 137,137.29 = 56,947.70 : x - Step 2: Convert to fraction form
99,360.74/137,137.29 = 56,947.70/x - Step 3: Cross multiply
99,360.74x = 137,137.29 × 56,947.70 - Step 4: Simplify right side
99,360.74x = 7,809,653,249.73 - Step 5: Solve for x
x = 7,809,653,249.73/99,360.74 - Step 6: Final answer
x = 78,598.98
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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.