Finding the Fourth Proportional to 74,003.47, 102,122.71 and 40,468.75
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Solution
The fourth proportional to 74,003.47, 102,122.71 and 40,468.75 is: 55,845.74
Step by Step Solution
- Step 1: Write the proportion equation
74,003.47 : 102,122.71 = 40,468.75 : x - Step 2: Convert to fraction form
74,003.47/102,122.71 = 40,468.75/x - Step 3: Cross multiply
74,003.47x = 102,122.71 × 40,468.75 - Step 4: Simplify right side
74,003.47x = 4,132,778,420.31 - Step 5: Solve for x
x = 4,132,778,420.31/74,003.47 - Step 6: Final answer
x = 55,845.74
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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.