Finding the Fourth Proportional to 85,106.13, 127,658.30 and 21,925.99
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Solution
The fourth proportional to 85,106.13, 127,658.30 and 21,925.99 is: 32,888.76
Step by Step Solution
- Step 1: Write the proportion equation
85,106.13 : 127,658.30 = 21,925.99 : x - Step 2: Convert to fraction form
85,106.13/127,658.30 = 21,925.99/x - Step 3: Cross multiply
85,106.13x = 127,658.30 × 21,925.99 - Step 4: Simplify right side
85,106.13x = 2,799,034,659.16 - Step 5: Solve for x
x = 2,799,034,659.16/85,106.13 - Step 6: Final answer
x = 32,888.76
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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.