Finding the Fourth Proportional to 97,424.07, 134,442.50 and 54,986.55
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Solution
The fourth proportional to 97,424.07, 134,442.50 and 54,986.55 is: 75,879.90
Step by Step Solution
- Step 1: Write the proportion equation
97,424.07 : 134,442.50 = 54,986.55 : x - Step 2: Convert to fraction form
97,424.07/134,442.50 = 54,986.55/x - Step 3: Cross multiply
97,424.07x = 134,442.50 × 54,986.55 - Step 4: Simplify right side
97,424.07x = 7,392,528,973.44 - Step 5: Solve for x
x = 7,392,528,973.44/97,424.07 - Step 6: Final answer
x = 75,879.90
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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.