Finding the Fourth Proportional to 93,687.36, 129,282.12 and 53,400.12
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Solution
The fourth proportional to 93,687.36, 129,282.12 and 53,400.12 is: 73,688.50
Step by Step Solution
- Step 1: Write the proportion equation
93,687.36 : 129,282.12 = 53,400.12 : x - Step 2: Convert to fraction form
93,687.36/129,282.12 = 53,400.12/x - Step 3: Cross multiply
93,687.36x = 129,282.12 × 53,400.12 - Step 4: Simplify right side
93,687.36x = 6,903,680,721.85 - Step 5: Solve for x
x = 6,903,680,721.85/93,687.36 - Step 6: Final answer
x = 73,688.50
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1.5x scale
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.