Finding the Fourth Proportional to 78,363.68, 108,111.12 and 44,811.68
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Solution
The fourth proportional to 78,363.68, 108,111.12 and 44,811.68 is: 61,822.53
Step by Step Solution
- Step 1: Write the proportion equation
78,363.68 : 108,111.12 = 44,811.68 : x - Step 2: Convert to fraction form
78,363.68/108,111.12 = 44,811.68/x - Step 3: Cross multiply
78,363.68x = 108,111.12 × 44,811.68 - Step 4: Simplify right side
78,363.68x = 4,844,640,913.88 - Step 5: Solve for x
x = 4,844,640,913.88/78,363.68 - Step 6: Final answer
x = 61,822.53
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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.