Finding the Fourth Proportional to 86,503.19, 119,374.21 and 48,777.17
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Solution
The fourth proportional to 86,503.19, 119,374.21 and 48,777.17 is: 67,312.39
Step by Step Solution
- Step 1: Write the proportion equation
86,503.19 : 119,374.21 = 48,777.17 : x - Step 2: Convert to fraction form
86,503.19/119,374.21 = 48,777.17/x - Step 3: Cross multiply
86,503.19x = 119,374.21 × 48,777.17 - Step 4: Simplify right side
86,503.19x = 5,822,736,311.28 - Step 5: Solve for x
x = 5,822,736,311.28/86,503.19 - Step 6: Final answer
x = 67,312.39
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1.5x scale
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.