Finding the Fourth Proportional to 70,968.06, 106,331.58 and 42,828.99
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Solution
The fourth proportional to 70,968.06, 106,331.58 and 42,828.99 is: 64,170.76
Step by Step Solution
- Step 1: Write the proportion equation
70,968.06 : 106,331.58 = 42,828.99 : x - Step 2: Convert to fraction form
70,968.06/106,331.58 = 42,828.99/x - Step 3: Cross multiply
70,968.06x = 106,331.58 × 42,828.99 - Step 4: Simplify right side
70,968.06x = 4,554,074,176.50 - Step 5: Solve for x
x = 4,554,074,176.50/70,968.06 - Step 6: Final answer
x = 64,170.76
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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.