Finding the Fourth Proportional to 92,911.02, 128,235.87 and 55,177.98
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Solution
The fourth proportional to 92,911.02, 128,235.87 and 55,177.98 is: 76,156.70
Step by Step Solution
- Step 1: Write the proportion equation
92,911.02 : 128,235.87 = 55,177.98 : x - Step 2: Convert to fraction form
92,911.02/128,235.87 = 55,177.98/x - Step 3: Cross multiply
92,911.02x = 128,235.87 × 55,177.98 - Step 4: Simplify right side
92,911.02x = 7,075,796,270.14 - Step 5: Solve for x
x = 7,075,796,270.14/92,911.02 - Step 6: Final answer
x = 76,156.70
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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.