Finding the Fourth Proportional to 86,206.99, 129,246.07 and 59,476.71
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Solution
The fourth proportional to 86,206.99, 129,246.07 and 59,476.71 is: 89,170.61
Step by Step Solution
- Step 1: Write the proportion equation
86,206.99 : 129,246.07 = 59,476.71 : x - Step 2: Convert to fraction form
86,206.99/129,246.07 = 59,476.71/x - Step 3: Cross multiply
86,206.99x = 129,246.07 × 59,476.71 - Step 4: Simplify right side
86,206.99x = 7,687,130,544.07 - Step 5: Solve for x
x = 7,687,130,544.07/86,206.99 - Step 6: Final answer
x = 89,170.61
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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.