Finding the Fourth Proportional to 76,852.12, 106,055.85 and 42,863.62
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Solution
The fourth proportional to 76,852.12, 106,055.85 and 42,863.62 is: 59,151.75
Step by Step Solution
- Step 1: Write the proportion equation
76,852.12 : 106,055.85 = 42,863.62 : x - Step 2: Convert to fraction form
76,852.12/106,055.85 = 42,863.62/x - Step 3: Cross multiply
76,852.12x = 106,055.85 × 42,863.62 - Step 4: Simplify right side
76,852.12x = 4,545,937,653.18 - Step 5: Solve for x
x = 4,545,937,653.18/76,852.12 - Step 6: Final answer
x = 59,151.75
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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.