Finding the Fourth Proportional to 74,373.66, 102,548.97 and 55,477.98
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Solution
The fourth proportional to 74,373.66, 102,548.97 and 55,477.98 is: 76,494.95
Step by Step Solution
- Step 1: Write the proportion equation
74,373.66 : 102,548.97 = 55,477.98 : x - Step 2: Convert to fraction form
74,373.66/102,548.97 = 55,477.98/x - Step 3: Cross multiply
74,373.66x = 102,548.97 × 55,477.98 - Step 4: Simplify right side
74,373.66x = 5,689,209,706.68 - Step 5: Solve for x
x = 5,689,209,706.68/74,373.66 - Step 6: Final answer
x = 76,494.95
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1.5x scale
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.