Finding the Fourth Proportional to 79.77, 110.08 and 47.02
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Solution
The fourth proportional to 79.77, 110.08 and 47.02 is: 64.88
Step by Step Solution
- Step 1: Write the proportion equation
79.77 : 110.08 = 47.02 : x - Step 2: Convert to fraction form
79.77/110.08 = 47.02/x - Step 3: Cross multiply
79.77x = 110.08 × 47.02 - Step 4: Simplify right side
79.77x = 5,176.08 - Step 5: Solve for x
x = 5,176.08/79.77 - Step 6: Final answer
x = 64.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.