Finding the Fourth Proportional to 93,410.53, 128,909.36 and 53,130.08
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Solution
The fourth proportional to 93,410.53, 128,909.36 and 53,130.08 is: 73,321.12
Step by Step Solution
- Step 1: Write the proportion equation
93,410.53 : 128,909.36 = 53,130.08 : x - Step 2: Convert to fraction form
93,410.53/128,909.36 = 53,130.08/x - Step 3: Cross multiply
93,410.53x = 128,909.36 × 53,130.08 - Step 4: Simplify right side
93,410.53x = 6,848,964,609.55 - Step 5: Solve for x
x = 6,848,964,609.55/93,410.53 - Step 6: Final answer
x = 73,321.12
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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.