Finding the Fourth Proportional to 77,175.67, 115,679.05 and 39,737.99
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Solution
The fourth proportional to 77,175.67, 115,679.05 and 39,737.99 is: 59,563.49
Step by Step Solution
- Step 1: Write the proportion equation
77,175.67 : 115,679.05 = 39,737.99 : x - Step 2: Convert to fraction form
77,175.67/115,679.05 = 39,737.99/x - Step 3: Cross multiply
77,175.67x = 115,679.05 × 39,737.99 - Step 4: Simplify right side
77,175.67x = 4,596,852,254.37 - Step 5: Solve for x
x = 4,596,852,254.37/77,175.67 - Step 6: Final answer
x = 59,563.49
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1.5x scale
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.