Finding the Fourth Proportional to 85,475.74, 128,219.08 and 32,885.23
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Solution
The fourth proportional to 85,475.74, 128,219.08 and 32,885.23 is: 49,329.95
Step by Step Solution
- Step 1: Write the proportion equation
85,475.74 : 128,219.08 = 32,885.23 : x - Step 2: Convert to fraction form
85,475.74/128,219.08 = 32,885.23/x - Step 3: Cross multiply
85,475.74x = 128,219.08 × 32,885.23 - Step 4: Simplify right side
85,475.74x = 4,216,513,936.19 - Step 5: Solve for x
x = 4,216,513,936.19/85,475.74 - Step 6: Final answer
x = 49,329.95
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1.5x scale
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.