Finding the Fourth Proportional to 97,972.20, 147,023.75 and 35,642.70
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Solution
The fourth proportional to 97,972.20, 147,023.75 and 35,642.70 is: 53,487.86
Step by Step Solution
- Step 1: Write the proportion equation
97,972.20 : 147,023.75 = 35,642.70 : x - Step 2: Convert to fraction form
97,972.20/147,023.75 = 35,642.70/x - Step 3: Cross multiply
97,972.20x = 147,023.75 × 35,642.70 - Step 4: Simplify right side
97,972.20x = 5,240,323,503.23 - Step 5: Solve for x
x = 5,240,323,503.23/97,972.20 - Step 6: Final answer
x = 53,487.86
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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.