Finding the Fourth Proportional to 92,854.37, 128,139.23 and 50,411.99
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Solution
The fourth proportional to 92,854.37, 128,139.23 and 50,411.99 is: 69,568.65
Step by Step Solution
- Step 1: Write the proportion equation
92,854.37 : 128,139.23 = 50,411.99 : x - Step 2: Convert to fraction form
92,854.37/128,139.23 = 50,411.99/x - Step 3: Cross multiply
92,854.37x = 128,139.23 × 50,411.99 - Step 4: Simplify right side
92,854.37x = 6,459,752,688.61 - Step 5: Solve for x
x = 6,459,752,688.61/92,854.37 - Step 6: Final answer
x = 69,568.65
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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.