Finding the Fourth Proportional to 76,159.36, 105,029.68 and 52,243.84
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Solution
The fourth proportional to 76,159.36, 105,029.68 and 52,243.84 is: 72,048.32
Step by Step Solution
- Step 1: Write the proportion equation
76,159.36 : 105,029.68 = 52,243.84 : x - Step 2: Convert to fraction form
76,159.36/105,029.68 = 52,243.84/x - Step 3: Cross multiply
76,159.36x = 105,029.68 × 52,243.84 - Step 4: Simplify right side
76,159.36x = 5,487,153,797.17 - Step 5: Solve for x
x = 5,487,153,797.17/76,159.36 - Step 6: Final answer
x = 72,048.32
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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.