Finding the Fourth Proportional to 86,980.95, 130,463.19 and 27,800.73
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Solution
The fourth proportional to 86,980.95, 130,463.19 and 27,800.73 is: 41,698.46
Step by Step Solution
- Step 1: Write the proportion equation
86,980.95 : 130,463.19 = 27,800.73 : x - Step 2: Convert to fraction form
86,980.95/130,463.19 = 27,800.73/x - Step 3: Cross multiply
86,980.95x = 130,463.19 × 27,800.73 - Step 4: Simplify right side
86,980.95x = 3,626,971,920.13 - Step 5: Solve for x
x = 3,626,971,920.13/86,980.95 - Step 6: Final answer
x = 41,698.46
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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.