Finding the Fourth Proportional to 97,326.28, 145,989.42 and 38,189.80
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Solution
The fourth proportional to 97,326.28, 145,989.42 and 38,189.80 is: 57,284.70
Step by Step Solution
- Step 1: Write the proportion equation
97,326.28 : 145,989.42 = 38,189.80 : x - Step 2: Convert to fraction form
97,326.28/145,989.42 = 38,189.80/x - Step 3: Cross multiply
97,326.28x = 145,989.42 × 38,189.80 - Step 4: Simplify right side
97,326.28x = 5,575,306,751.92 - Step 5: Solve for x
x = 5,575,306,751.92/97,326.28 - Step 6: Final answer
x = 57,284.70
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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.