Finding the Fourth Proportional to 92,869.15, 128,158.31 and 50,427.99
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Solution
The fourth proportional to 92,869.15, 128,158.31 and 50,427.99 is: 69,590.02
Step by Step Solution
- Step 1: Write the proportion equation
92,869.15 : 128,158.31 = 50,427.99 : x - Step 2: Convert to fraction form
92,869.15/128,158.31 = 50,427.99/x - Step 3: Cross multiply
92,869.15x = 128,158.31 × 50,427.99 - Step 4: Simplify right side
92,869.15x = 6,462,765,975.10 - Step 5: Solve for x
x = 6,462,765,975.10/92,869.15 - Step 6: Final answer
x = 69,590.02
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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.