Finding the Fourth Proportional to 109,690.79, 164,502.16 and 39,560.99
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Solution
The fourth proportional to 109,690.79, 164,502.16 and 39,560.99 is: 59,329.21
Step by Step Solution
- Step 1: Write the proportion equation
109,690.79 : 164,502.16 = 39,560.99 : x - Step 2: Convert to fraction form
109,690.79/164,502.16 = 39,560.99/x - Step 3: Cross multiply
109,690.79x = 164,502.16 × 39,560.99 - Step 4: Simplify right side
109,690.79x = 6,507,868,306.74 - Step 5: Solve for x
x = 6,507,868,306.74/109,690.79 - Step 6: Final answer
x = 59,329.21
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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.