Finding the Fourth Proportional to 77,487.56, 106,929.33 and 47,268.08
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Solution
The fourth proportional to 77,487.56, 106,929.33 and 47,268.08 is: 65,227.81
Step by Step Solution
- Step 1: Write the proportion equation
77,487.56 : 106,929.33 = 47,268.08 : x - Step 2: Convert to fraction form
77,487.56/106,929.33 = 47,268.08/x - Step 3: Cross multiply
77,487.56x = 106,929.33 × 47,268.08 - Step 4: Simplify right side
77,487.56x = 5,054,344,124.79 - Step 5: Solve for x
x = 5,054,344,124.79/77,487.56 - Step 6: Final answer
x = 65,227.81
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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.