Finding the Fourth Proportional to 93,209.76, 128,540.36 and 62,651.88
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Solution
The fourth proportional to 93,209.76, 128,540.36 and 62,651.88 is: 86,399.70
Step by Step Solution
- Step 1: Write the proportion equation
93,209.76 : 128,540.36 = 62,651.88 : x - Step 2: Convert to fraction form
93,209.76/128,540.36 = 62,651.88/x - Step 3: Cross multiply
93,209.76x = 128,540.36 × 62,651.88 - Step 4: Simplify right side
93,209.76x = 8,053,295,209.88 - Step 5: Solve for x
x = 8,053,295,209.88/93,209.76 - Step 6: Final answer
x = 86,399.70
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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.