Finding the Fourth Proportional to 77,272.01, 115,908.02 and 42,192.53
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Solution
The fourth proportional to 77,272.01, 115,908.02 and 42,192.53 is: 63,288.80
Step by Step Solution
- Step 1: Write the proportion equation
77,272.01 : 115,908.02 = 42,192.53 : x - Step 2: Convert to fraction form
77,272.01/115,908.02 = 42,192.53/x - Step 3: Cross multiply
77,272.01x = 115,908.02 × 42,192.53 - Step 4: Simplify right side
77,272.01x = 4,890,452,400.13 - Step 5: Solve for x
x = 4,890,452,400.13/77,272.01 - Step 6: Final answer
x = 63,288.80
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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.