Finding the Fourth Proportional to 84,005.68, 115,926.96 and 46,279.12
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Solution
The fourth proportional to 84,005.68, 115,926.96 and 46,279.12 is: 63,864.70
Step by Step Solution
- Step 1: Write the proportion equation
84,005.68 : 115,926.96 = 46,279.12 : x - Step 2: Convert to fraction form
84,005.68/115,926.96 = 46,279.12/x - Step 3: Cross multiply
84,005.68x = 115,926.96 × 46,279.12 - Step 4: Simplify right side
84,005.68x = 5,364,997,693.08 - Step 5: Solve for x
x = 5,364,997,693.08/84,005.68 - Step 6: Final answer
x = 63,864.70
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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.