Finding the Fourth Proportional to 85,531.08, 128,259.91 and 29,376.84
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Solution
The fourth proportional to 85,531.08, 128,259.91 and 29,376.84 is: 44,052.65
Step by Step Solution
- Step 1: Write the proportion equation
85,531.08 : 128,259.91 = 29,376.84 : x - Step 2: Convert to fraction form
85,531.08/128,259.91 = 29,376.84/x - Step 3: Cross multiply
85,531.08x = 128,259.91 × 29,376.84 - Step 4: Simplify right side
85,531.08x = 3,767,870,854.48 - Step 5: Solve for x
x = 3,767,870,854.48/85,531.08 - Step 6: Final answer
x = 44,052.65
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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.