Finding the Fourth Proportional to 77,526.40, 106,998.08 and 47,329.26
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Solution
The fourth proportional to 77,526.40, 106,998.08 and 47,329.26 is: 65,321.49
Step by Step Solution
- Step 1: Write the proportion equation
77,526.40 : 106,998.08 = 47,329.26 : x - Step 2: Convert to fraction form
77,526.40/106,998.08 = 47,329.26/x - Step 3: Cross multiply
77,526.40x = 106,998.08 × 47,329.26 - Step 4: Simplify right side
77,526.40x = 5,064,139,947.82 - Step 5: Solve for x
x = 5,064,139,947.82/77,526.40 - Step 6: Final answer
x = 65,321.49
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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.