Finding the Fourth Proportional to 90,460.18, 135,703.63 and 31,279.96
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Solution
The fourth proportional to 90,460.18, 135,703.63 and 31,279.96 is: 46,924.55
Step by Step Solution
- Step 1: Write the proportion equation
90,460.18 : 135,703.63 = 31,279.96 : x - Step 2: Convert to fraction form
90,460.18/135,703.63 = 31,279.96/x - Step 3: Cross multiply
90,460.18x = 135,703.63 × 31,279.96 - Step 4: Simplify right side
90,460.18x = 4,244,803,439.74 - Step 5: Solve for x
x = 4,244,803,439.74/90,460.18 - Step 6: Final answer
x = 46,924.55
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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.