Finding the Fourth Proportional to 79,719.75, 110,013.26 and 43,909.65
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Solution
The fourth proportional to 79,719.75, 110,013.26 and 43,909.65 is: 60,595.32
Step by Step Solution
- Step 1: Write the proportion equation
79,719.75 : 110,013.26 = 43,909.65 : x - Step 2: Convert to fraction form
79,719.75/110,013.26 = 43,909.65/x - Step 3: Cross multiply
79,719.75x = 110,013.26 × 43,909.65 - Step 4: Simplify right side
79,719.75x = 4,830,643,522.41 - Step 5: Solve for x
x = 4,830,643,522.41/79,719.75 - Step 6: Final answer
x = 60,595.32
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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.