Finding the Fourth Proportional to 77,712.24, 107,281.62 and 50,895.84
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Solution
The fourth proportional to 77,712.24, 107,281.62 and 50,895.84 is: 70,261.62
Step by Step Solution
- Step 1: Write the proportion equation
77,712.24 : 107,281.62 = 50,895.84 : x - Step 2: Convert to fraction form
77,712.24/107,281.62 = 50,895.84/x - Step 3: Cross multiply
77,712.24x = 107,281.62 × 50,895.84 - Step 4: Simplify right side
77,712.24x = 5,460,188,166.46 - Step 5: Solve for x
x = 5,460,188,166.46/77,712.24 - Step 6: Final answer
x = 70,261.62
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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.