Finding the Fourth Proportional to 74,114.04, 102,277.53 and 40,122.78
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Solution
The fourth proportional to 74,114.04, 102,277.53 and 40,122.78 is: 55,369.52
Step by Step Solution
- Step 1: Write the proportion equation
74,114.04 : 102,277.53 = 40,122.78 : x - Step 2: Convert to fraction form
74,114.04/102,277.53 = 40,122.78/x - Step 3: Cross multiply
74,114.04x = 102,277.53 × 40,122.78 - Step 4: Simplify right side
74,114.04x = 4,103,658,835.13 - Step 5: Solve for x
x = 4,103,658,835.13/74,114.04 - Step 6: Final answer
x = 55,369.52
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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.