Finding the Fourth Proportional to 75,686.06, 104,446.77 and 42,152.06
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Solution
The fourth proportional to 75,686.06, 104,446.77 and 42,152.06 is: 58,169.85
Step by Step Solution
- Step 1: Write the proportion equation
75,686.06 : 104,446.77 = 42,152.06 : x - Step 2: Convert to fraction form
75,686.06/104,446.77 = 42,152.06/x - Step 3: Cross multiply
75,686.06x = 104,446.77 × 42,152.06 - Step 4: Simplify right side
75,686.06x = 4,402,646,618.89 - Step 5: Solve for x
x = 4,402,646,618.89/75,686.06 - Step 6: Final answer
x = 58,169.85
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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.