Finding the Fourth Proportional to 70,218.24, 105,368.96 and 25,876.08
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Solution
The fourth proportional to 70,218.24, 105,368.96 and 25,876.08 is: 38,829.45
Step by Step Solution
- Step 1: Write the proportion equation
70,218.24 : 105,368.96 = 25,876.08 : x - Step 2: Convert to fraction form
70,218.24/105,368.96 = 25,876.08/x - Step 3: Cross multiply
70,218.24x = 105,368.96 × 25,876.08 - Step 4: Simplify right side
70,218.24x = 2,726,535,638.48 - Step 5: Solve for x
x = 2,726,535,638.48/70,218.24 - Step 6: Final answer
x = 38,829.45
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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.