Finding the Fourth Proportional to 76,291.76, 105,294.84 and 44,479.28
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Solution
The fourth proportional to 76,291.76, 105,294.84 and 44,479.28 is: 61,388.53
Step by Step Solution
- Step 1: Write the proportion equation
76,291.76 : 105,294.84 = 44,479.28 : x - Step 2: Convert to fraction form
76,291.76/105,294.84 = 44,479.28/x - Step 3: Cross multiply
76,291.76x = 105,294.84 × 44,479.28 - Step 4: Simplify right side
76,291.76x = 4,683,438,670.92 - Step 5: Solve for x
x = 4,683,438,670.92/76,291.76 - Step 6: Final answer
x = 61,388.53
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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.