Finding the Fourth Proportional to 88,011.51, 121,424.00 and 57,813.09
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Solution
The fourth proportional to 88,011.51, 121,424.00 and 57,813.09 is: 79,761.12
Step by Step Solution
- Step 1: Write the proportion equation
88,011.51 : 121,424.00 = 57,813.09 : x - Step 2: Convert to fraction form
88,011.51/121,424.00 = 57,813.09/x - Step 3: Cross multiply
88,011.51x = 121,424.00 × 57,813.09 - Step 4: Simplify right side
88,011.51x = 7,019,896,351.09 - Step 5: Solve for x
x = 7,019,896,351.09/88,011.51 - Step 6: Final answer
x = 79,761.12
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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.