Finding the Fourth Proportional to 70,141.74, 105,143.35 and 27,996.42
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Solution
The fourth proportional to 70,141.74, 105,143.35 and 27,996.42 is: 41,966.99
Step by Step Solution
- Step 1: Write the proportion equation
70,141.74 : 105,143.35 = 27,996.42 : x - Step 2: Convert to fraction form
70,141.74/105,143.35 = 27,996.42/x - Step 3: Cross multiply
70,141.74x = 105,143.35 × 27,996.42 - Step 4: Simplify right side
70,141.74x = 2,943,637,386.81 - Step 5: Solve for x
x = 2,943,637,386.81/70,141.74 - Step 6: Final answer
x = 41,966.99
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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.