Finding the Fourth Proportional to 86,727.18, 130,031.57 and 46,206.75
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Solution
The fourth proportional to 86,727.18, 130,031.57 and 46,206.75 is: 69,278.58
Step by Step Solution
- Step 1: Write the proportion equation
86,727.18 : 130,031.57 = 46,206.75 : x - Step 2: Convert to fraction form
86,727.18/130,031.57 = 46,206.75/x - Step 3: Cross multiply
86,727.18x = 130,031.57 × 46,206.75 - Step 4: Simplify right side
86,727.18x = 6,008,336,016.06 - Step 5: Solve for x
x = 6,008,336,016.06/86,727.18 - Step 6: Final answer
x = 69,278.58
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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.