Finding the Fourth Proportional to 74,719.02, 103,053.92 and 47,864.02
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Solution
The fourth proportional to 74,719.02, 103,053.92 and 47,864.02 is: 66,014.99
Step by Step Solution
- Step 1: Write the proportion equation
74,719.02 : 103,053.92 = 47,864.02 : x - Step 2: Convert to fraction form
74,719.02/103,053.92 = 47,864.02/x - Step 3: Cross multiply
74,719.02x = 103,053.92 × 47,864.02 - Step 4: Simplify right side
74,719.02x = 4,932,575,100.55 - Step 5: Solve for x
x = 4,932,575,100.55/74,719.02 - Step 6: Final answer
x = 66,014.99
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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.