Finding the Fourth Proportional to 85,976.24, 128,931.62 and 33,373.49
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Solution
The fourth proportional to 85,976.24, 128,931.62 and 33,373.49 is: 50,047.52
Step by Step Solution
- Step 1: Write the proportion equation
85,976.24 : 128,931.62 = 33,373.49 : x - Step 2: Convert to fraction form
85,976.24/128,931.62 = 33,373.49/x - Step 3: Cross multiply
85,976.24x = 128,931.62 × 33,373.49 - Step 4: Simplify right side
85,976.24x = 4,302,897,319.23 - Step 5: Solve for x
x = 4,302,897,319.23/85,976.24 - Step 6: Final answer
x = 50,047.52
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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.