Finding the Fourth Proportional to 75,784.21, 104,504.79 and 50,281.63
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Solution
The fourth proportional to 75,784.21, 104,504.79 and 50,281.63 is: 69,337.28
Step by Step Solution
- Step 1: Write the proportion equation
75,784.21 : 104,504.79 = 50,281.63 : x - Step 2: Convert to fraction form
75,784.21/104,504.79 = 50,281.63/x - Step 3: Cross multiply
75,784.21x = 104,504.79 × 50,281.63 - Step 4: Simplify right side
75,784.21x = 5,254,671,184.01 - Step 5: Solve for x
x = 5,254,671,184.01/75,784.21 - Step 6: Final answer
x = 69,337.28
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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.