Finding the Fourth Proportional to 96,781.57, 133,546.19 and 56,486.09
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Solution
The fourth proportional to 96,781.57, 133,546.19 and 56,486.09 is: 77,943.58
Step by Step Solution
- Step 1: Write the proportion equation
96,781.57 : 133,546.19 = 56,486.09 : x - Step 2: Convert to fraction form
96,781.57/133,546.19 = 56,486.09/x - Step 3: Cross multiply
96,781.57x = 133,546.19 × 56,486.09 - Step 4: Simplify right side
96,781.57x = 7,543,502,158.93 - Step 5: Solve for x
x = 7,543,502,158.93/96,781.57 - Step 6: Final answer
x = 77,943.58
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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.