Finding the Fourth Proportional to 86,970.36, 130,456.74 and 24,640.80
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Solution
The fourth proportional to 86,970.36, 130,456.74 and 24,640.80 is: 36,961.54
Step by Step Solution
- Step 1: Write the proportion equation
86,970.36 : 130,456.74 = 24,640.80 : x - Step 2: Convert to fraction form
86,970.36/130,456.74 = 24,640.80/x - Step 3: Cross multiply
86,970.36x = 130,456.74 × 24,640.80 - Step 4: Simplify right side
86,970.36x = 3,214,558,438.99 - Step 5: Solve for x
x = 3,214,558,438.99/86,970.36 - Step 6: Final answer
x = 36,961.54
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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.