Finding the Fourth Proportional to 74,276.28, 111,419.58 and 29,902.95
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Solution
The fourth proportional to 74,276.28, 111,419.58 and 29,902.95 is: 44,856.50
Step by Step Solution
- Step 1: Write the proportion equation
74,276.28 : 111,419.58 = 29,902.95 : x - Step 2: Convert to fraction form
74,276.28/111,419.58 = 29,902.95/x - Step 3: Cross multiply
74,276.28x = 111,419.58 × 29,902.95 - Step 4: Simplify right side
74,276.28x = 3,331,774,129.76 - Step 5: Solve for x
x = 3,331,774,129.76/74,276.28 - Step 6: Final answer
x = 44,856.50
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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.