Finding the Fourth Proportional to 99,355.58, 137,070.26 and 56,325.95
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Solution
The fourth proportional to 99,355.58, 137,070.26 and 56,325.95 is: 77,706.88
Step by Step Solution
- Step 1: Write the proportion equation
99,355.58 : 137,070.26 = 56,325.95 : x - Step 2: Convert to fraction form
99,355.58/137,070.26 = 56,325.95/x - Step 3: Cross multiply
99,355.58x = 137,070.26 × 56,325.95 - Step 4: Simplify right side
99,355.58x = 7,720,612,611.25 - Step 5: Solve for x
x = 7,720,612,611.25/99,355.58 - Step 6: Final answer
x = 77,706.88
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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.