Finding the Fourth Proportional to 78,686.07, 118,029.96 and 62,990.88
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Solution
The fourth proportional to 78,686.07, 118,029.96 and 62,990.88 is: 94,487.00
Step by Step Solution
- Step 1: Write the proportion equation
78,686.07 : 118,029.96 = 62,990.88 : x - Step 2: Convert to fraction form
78,686.07/118,029.96 = 62,990.88/x - Step 3: Cross multiply
78,686.07x = 118,029.96 × 62,990.88 - Step 4: Simplify right side
78,686.07x = 7,434,811,046.76 - Step 5: Solve for x
x = 7,434,811,046.76/78,686.07 - Step 6: Final answer
x = 94,487.00
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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.