Finding the Fourth Proportional to 91,318.49, 125,937.92 and 57,330.14
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Solution
The fourth proportional to 91,318.49, 125,937.92 and 57,330.14 is: 79,064.37
Step by Step Solution
- Step 1: Write the proportion equation
91,318.49 : 125,937.92 = 57,330.14 : x - Step 2: Convert to fraction form
91,318.49/125,937.92 = 57,330.14/x - Step 3: Cross multiply
91,318.49x = 125,937.92 × 57,330.14 - Step 4: Simplify right side
91,318.49x = 7,220,038,298.26 - Step 5: Solve for x
x = 7,220,038,298.26/91,318.49 - Step 6: Final answer
x = 79,064.37
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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.