Finding the Fourth Proportional to 93.05, 139.70 and 58.70
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Solution
The fourth proportional to 93.05, 139.70 and 58.70 is: 88.12
Step by Step Solution
- Step 1: Write the proportion equation
93.05 : 139.70 = 58.70 : x - Step 2: Convert to fraction form
93.05/139.70 = 58.70/x - Step 3: Cross multiply
93.05x = 139.70 × 58.70 - Step 4: Simplify right side
93.05x = 8,199.40 - Step 5: Solve for x
x = 8,199.40/93.05 - Step 6: Final answer
x = 88.12
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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.