Finding the Fourth Proportional to 115,877.50, 159,910.95 and 62,885.50
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Solution
The fourth proportional to 115,877.50, 159,910.95 and 62,885.50 is: 86,781.99
Step by Step Solution
- Step 1: Write the proportion equation
115,877.50 : 159,910.95 = 62,885.50 : x - Step 2: Convert to fraction form
115,877.50/159,910.95 = 62,885.50/x - Step 3: Cross multiply
115,877.50x = 159,910.95 × 62,885.50 - Step 4: Simplify right side
115,877.50x = 10,056,080,046.23 - Step 5: Solve for x
x = 10,056,080,046.23/115,877.50 - Step 6: Final answer
x = 86,781.99
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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.