Finding the Fourth Proportional to 77,124.83, 106,445.48 and 44,878.19
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Solution
The fourth proportional to 77,124.83, 106,445.48 and 44,878.19 is: 61,939.59
Step by Step Solution
- Step 1: Write the proportion equation
77,124.83 : 106,445.48 = 44,878.19 : x - Step 2: Convert to fraction form
77,124.83/106,445.48 = 44,878.19/x - Step 3: Cross multiply
77,124.83x = 106,445.48 × 44,878.19 - Step 4: Simplify right side
77,124.83x = 4,777,079,719.46 - Step 5: Solve for x
x = 4,777,079,719.46/77,124.83 - Step 6: Final answer
x = 61,939.59
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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.