Finding the Fourth Proportional to 51.24, 70.58 and 42.06
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Solution
The fourth proportional to 51.24, 70.58 and 42.06 is: 57.94
Step by Step Solution
- Step 1: Write the proportion equation
51.24 : 70.58 = 42.06 : x - Step 2: Convert to fraction form
51.24/70.58 = 42.06/x - Step 3: Cross multiply
51.24x = 70.58 × 42.06 - Step 4: Simplify right side
51.24x = 2,968.59 - Step 5: Solve for x
x = 2,968.59/51.24 - Step 6: Final answer
x = 57.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.