Finding the Fourth Proportional to 81,502.04, 122,242.68 and 31,547.96
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Solution
The fourth proportional to 81,502.04, 122,242.68 and 31,547.96 is: 47,317.92
Step by Step Solution
- Step 1: Write the proportion equation
81,502.04 : 122,242.68 = 31,547.96 : x - Step 2: Convert to fraction form
81,502.04/122,242.68 = 31,547.96/x - Step 3: Cross multiply
81,502.04x = 122,242.68 × 31,547.96 - Step 4: Simplify right side
81,502.04x = 3,856,507,484.54 - Step 5: Solve for x
x = 3,856,507,484.54/81,502.04 - Step 6: Final answer
x = 47,317.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.