Finding the Fourth Proportional to 97,020.18, 133,887.65 and 54,578.74
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Solution
The fourth proportional to 97,020.18, 133,887.65 and 54,578.74 is: 75,318.55
Step by Step Solution
- Step 1: Write the proportion equation
97,020.18 : 133,887.65 = 54,578.74 : x - Step 2: Convert to fraction form
97,020.18/133,887.65 = 54,578.74/x - Step 3: Cross multiply
97,020.18x = 133,887.65 × 54,578.74 - Step 4: Simplify right side
97,020.18x = 7,307,418,965.67 - Step 5: Solve for x
x = 7,307,418,965.67/97,020.18 - Step 6: Final answer
x = 75,318.55
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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.