Finding the Fourth Proportional to 70.36, 97.14 and 62.68
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Solution
The fourth proportional to 70.36, 97.14 and 62.68 is: 86.54
Step by Step Solution
- Step 1: Write the proportion equation
70.36 : 97.14 = 62.68 : x - Step 2: Convert to fraction form
70.36/97.14 = 62.68/x - Step 3: Cross multiply
70.36x = 97.14 × 62.68 - Step 4: Simplify right side
70.36x = 6,088.74 - Step 5: Solve for x
x = 6,088.74/70.36 - Step 6: Final answer
x = 86.54
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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.