Finding the Fourth Proportional to 70,161.84, 96,823.68 and 38,331.26
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Solution
The fourth proportional to 70,161.84, 96,823.68 and 38,331.26 is: 52,897.32
Step by Step Solution
- Step 1: Write the proportion equation
70,161.84 : 96,823.68 = 38,331.26 : x - Step 2: Convert to fraction form
70,161.84/96,823.68 = 38,331.26/x - Step 3: Cross multiply
70,161.84x = 96,823.68 × 38,331.26 - Step 4: Simplify right side
70,161.84x = 3,711,373,652.24 - Step 5: Solve for x
x = 3,711,373,652.24/70,161.84 - Step 6: Final answer
x = 52,897.32
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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.