Finding the Fourth Proportional to 85,089.49, 117,434.51 and 48,805.09
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Solution
The fourth proportional to 85,089.49, 117,434.51 and 48,805.09 is: 67,357.34
Step by Step Solution
- Step 1: Write the proportion equation
85,089.49 : 117,434.51 = 48,805.09 : x - Step 2: Convert to fraction form
85,089.49/117,434.51 = 48,805.09/x - Step 3: Cross multiply
85,089.49x = 117,434.51 × 48,805.09 - Step 4: Simplify right side
85,089.49x = 5,731,401,829.66 - Step 5: Solve for x
x = 5,731,401,829.66/85,089.49 - Step 6: Final answer
x = 67,357.34
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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.