Finding the Fourth Proportional to 79,784.36, 110,103.18 and 43,975.74
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Solution
The fourth proportional to 79,784.36, 110,103.18 and 43,975.74 is: 60,686.95
Step by Step Solution
- Step 1: Write the proportion equation
79,784.36 : 110,103.18 = 43,975.74 : x - Step 2: Convert to fraction form
79,784.36/110,103.18 = 43,975.74/x - Step 3: Cross multiply
79,784.36x = 110,103.18 × 43,975.74 - Step 4: Simplify right side
79,784.36x = 4,841,869,312.19 - Step 5: Solve for x
x = 4,841,869,312.19/79,784.36 - Step 6: Final answer
x = 60,686.95
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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.