Finding the Fourth Proportional to 78,252.13, 107,990.39 and 44,259.95
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Solution
The fourth proportional to 78,252.13, 107,990.39 and 44,259.95 is: 61,080.12
Step by Step Solution
- Step 1: Write the proportion equation
78,252.13 : 107,990.39 = 44,259.95 : x - Step 2: Convert to fraction form
78,252.13/107,990.39 = 44,259.95/x - Step 3: Cross multiply
78,252.13x = 107,990.39 × 44,259.95 - Step 4: Simplify right side
78,252.13x = 4,779,649,261.88 - Step 5: Solve for x
x = 4,779,649,261.88/78,252.13 - Step 6: Final answer
x = 61,080.12
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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.