Finding the Fourth Proportional to 97,784.46, 134,915.36 and 55,342.08
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Solution
The fourth proportional to 97,784.46, 134,915.36 and 55,342.08 is: 76,356.68
Step by Step Solution
- Step 1: Write the proportion equation
97,784.46 : 134,915.36 = 55,342.08 : x - Step 2: Convert to fraction form
97,784.46/134,915.36 = 55,342.08/x - Step 3: Cross multiply
97,784.46x = 134,915.36 × 55,342.08 - Step 4: Simplify right side
97,784.46x = 7,466,496,369.64 - Step 5: Solve for x
x = 7,466,496,369.64/97,784.46 - Step 6: Final answer
x = 76,356.68
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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.