Finding the Fourth Proportional to 74,345.94, 102,682.55 and 48,965.74
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Solution
The fourth proportional to 74,345.94, 102,682.55 and 48,965.74 is: 67,628.80
Step by Step Solution
- Step 1: Write the proportion equation
74,345.94 : 102,682.55 = 48,965.74 : x - Step 2: Convert to fraction form
74,345.94/102,682.55 = 48,965.74/x - Step 3: Cross multiply
74,345.94x = 102,682.55 × 48,965.74 - Step 4: Simplify right side
74,345.94x = 5,027,926,911.54 - Step 5: Solve for x
x = 5,027,926,911.54/74,345.94 - Step 6: Final answer
x = 67,628.80
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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.