Finding the Fourth Proportional to 72,973.26, 100,702.80 and 39,439.26
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Solution
The fourth proportional to 72,973.26, 100,702.80 and 39,439.26 is: 54,426.02
Step by Step Solution
- Step 1: Write the proportion equation
72,973.26 : 100,702.80 = 39,439.26 : x - Step 2: Convert to fraction form
72,973.26/100,702.80 = 39,439.26/x - Step 3: Cross multiply
72,973.26x = 100,702.80 × 39,439.26 - Step 4: Simplify right side
72,973.26x = 3,971,643,911.93 - Step 5: Solve for x
x = 3,971,643,911.93/72,973.26 - Step 6: Final answer
x = 54,426.02
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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.