Finding the Fourth Proportional to 87,933.06, 121,347.77 and 47,647.17
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Solution
The fourth proportional to 87,933.06, 121,347.77 and 47,647.17 is: 65,753.17
Step by Step Solution
- Step 1: Write the proportion equation
87,933.06 : 121,347.77 = 47,647.17 : x - Step 2: Convert to fraction form
87,933.06/121,347.77 = 47,647.17/x - Step 3: Cross multiply
87,933.06x = 121,347.77 × 47,647.17 - Step 4: Simplify right side
87,933.06x = 5,781,877,588.08 - Step 5: Solve for x
x = 5,781,877,588.08/87,933.06 - Step 6: Final answer
x = 65,753.17
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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.