Finding the Fourth Proportional to 92,868.15, 128,156.93 and 50,426.99
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Solution
The fourth proportional to 92,868.15, 128,156.93 and 50,426.99 is: 69,588.64
Step by Step Solution
- Step 1: Write the proportion equation
92,868.15 : 128,156.93 = 50,426.99 : x - Step 2: Convert to fraction form
92,868.15/128,156.93 = 50,426.99/x - Step 3: Cross multiply
92,868.15x = 128,156.93 × 50,426.99 - Step 4: Simplify right side
92,868.15x = 6,462,568,287.96 - Step 5: Solve for x
x = 6,462,568,287.96/92,868.15 - Step 6: Final answer
x = 69,588.64
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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.