Finding the Fourth Proportional to 77,203.88, 115,542.84 and 64,737.98
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Solution
The fourth proportional to 77,203.88, 115,542.84 and 64,737.98 is: 96,886.45
Step by Step Solution
- Step 1: Write the proportion equation
77,203.88 : 115,542.84 = 64,737.98 : x - Step 2: Convert to fraction form
77,203.88/115,542.84 = 64,737.98/x - Step 3: Cross multiply
77,203.88x = 115,542.84 × 64,737.98 - Step 4: Simplify right side
77,203.88x = 7,480,010,065.06 - Step 5: Solve for x
x = 7,480,010,065.06/77,203.88 - Step 6: Final answer
x = 96,886.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.