Finding the Fourth Proportional to 70,143.84, 105,257.68 and 25,775.08
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Solution
The fourth proportional to 70,143.84, 105,257.68 and 25,775.08 is: 38,678.02
Step by Step Solution
- Step 1: Write the proportion equation
70,143.84 : 105,257.68 = 25,775.08 : x - Step 2: Convert to fraction form
70,143.84/105,257.68 = 25,775.08/x - Step 3: Cross multiply
70,143.84x = 105,257.68 × 25,775.08 - Step 4: Simplify right side
70,143.84x = 2,713,024,923.91 - Step 5: Solve for x
x = 2,713,024,923.91/70,143.84 - Step 6: Final answer
x = 38,678.02
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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.