Finding the Fourth Proportional to 94,405.72, 130,213.54 and 62,130.05
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Solution
The fourth proportional to 94,405.72, 130,213.54 and 62,130.05 is: 85,695.80
Step by Step Solution
- Step 1: Write the proportion equation
94,405.72 : 130,213.54 = 62,130.05 : x - Step 2: Convert to fraction form
94,405.72/130,213.54 = 62,130.05/x - Step 3: Cross multiply
94,405.72x = 130,213.54 × 62,130.05 - Step 4: Simplify right side
94,405.72x = 8,090,173,440.23 - Step 5: Solve for x
x = 8,090,173,440.23/94,405.72 - Step 6: Final answer
x = 85,695.80
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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.