Finding the Fourth Proportional to 58.60, 88.02 and 47.80
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Solution
The fourth proportional to 58.60, 88.02 and 47.80 is: 71.80
Step by Step Solution
- Step 1: Write the proportion equation
58.60 : 88.02 = 47.80 : x - Step 2: Convert to fraction form
58.60/88.02 = 47.80/x - Step 3: Cross multiply
58.60x = 88.02 × 47.80 - Step 4: Simplify right side
58.60x = 4,207.36 - Step 5: Solve for x
x = 4,207.36/58.60 - Step 6: Final answer
x = 71.80
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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.