Finding the Fourth Proportional to 87,852.08, 121,291.26 and 67,671.02
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Solution
The fourth proportional to 87,852.08, 121,291.26 and 67,671.02 is: 93,428.67
Step by Step Solution
- Step 1: Write the proportion equation
87,852.08 : 121,291.26 = 67,671.02 : x - Step 2: Convert to fraction form
87,852.08/121,291.26 = 67,671.02/x - Step 3: Cross multiply
87,852.08x = 121,291.26 × 67,671.02 - Step 4: Simplify right side
87,852.08x = 8,207,903,281.29 - Step 5: Solve for x
x = 8,207,903,281.29/87,852.08 - Step 6: Final answer
x = 93,428.67
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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.