Finding the Fourth Proportional to 86,981.13, 130,496.99 and 36,404.02
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Solution
The fourth proportional to 86,981.13, 130,496.99 and 36,404.02 is: 54,616.62
Step by Step Solution
- Step 1: Write the proportion equation
86,981.13 : 130,496.99 = 36,404.02 : x - Step 2: Convert to fraction form
86,981.13/130,496.99 = 36,404.02/x - Step 3: Cross multiply
86,981.13x = 130,496.99 × 36,404.02 - Step 4: Simplify right side
86,981.13x = 4,750,615,015.00 - Step 5: Solve for x
x = 4,750,615,015.00/86,981.13 - Step 6: Final answer
x = 54,616.62
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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.