Finding the Fourth Proportional to 72,502.48, 108,732.84 and 19,913.68
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Solution
The fourth proportional to 72,502.48, 108,732.84 and 19,913.68 is: 29,864.79
Step by Step Solution
- Step 1: Write the proportion equation
72,502.48 : 108,732.84 = 19,913.68 : x - Step 2: Convert to fraction form
72,502.48/108,732.84 = 19,913.68/x - Step 3: Cross multiply
72,502.48x = 108,732.84 × 19,913.68 - Step 4: Simplify right side
72,502.48x = 2,165,270,981.25 - Step 5: Solve for x
x = 2,165,270,981.25/72,502.48 - Step 6: Final answer
x = 29,864.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.