Finding the Fourth Proportional to 58.06, 87.08 and 19.55
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Solution
The fourth proportional to 58.06, 87.08 and 19.55 is: 29.31
Step by Step Solution
- Step 1: Write the proportion equation
58.06 : 87.08 = 19.55 : x - Step 2: Convert to fraction form
58.06/87.08 = 19.55/x - Step 3: Cross multiply
58.06x = 87.08 × 19.55 - Step 4: Simplify right side
58.06x = 1,702.08 - Step 5: Solve for x
x = 1,702.08/58.06 - Step 6: Final answer
x = 29.31
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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.