Finding the Fourth Proportional to 102,477.52, 153,720.99 and 31,395.06
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Solution
The fourth proportional to 102,477.52, 153,720.99 and 31,395.06 is: 47,094.03
Step by Step Solution
- Step 1: Write the proportion equation
102,477.52 : 153,720.99 = 31,395.06 : x - Step 2: Convert to fraction form
102,477.52/153,720.99 = 31,395.06/x - Step 3: Cross multiply
102,477.52x = 153,720.99 × 31,395.06 - Step 4: Simplify right side
102,477.52x = 4,826,079,704.31 - Step 5: Solve for x
x = 4,826,079,704.31/102,477.52 - Step 6: Final answer
x = 47,094.03
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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.