Finding the Fourth Proportional to 87,210.30, 120,348.68 and 48,970.15
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Solution
The fourth proportional to 87,210.30, 120,348.68 and 48,970.15 is: 67,577.95
Step by Step Solution
- Step 1: Write the proportion equation
87,210.30 : 120,348.68 = 48,970.15 : x - Step 2: Convert to fraction form
87,210.30/120,348.68 = 48,970.15/x - Step 3: Cross multiply
87,210.30x = 120,348.68 × 48,970.15 - Step 4: Simplify right side
87,210.30x = 5,893,492,911.90 - Step 5: Solve for x
x = 5,893,492,911.90/87,210.30 - Step 6: Final answer
x = 67,577.95
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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.