Finding the Fourth Proportional to 74,484.28, 102,759.06 and 42,636.04
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Solution
The fourth proportional to 74,484.28, 102,759.06 and 42,636.04 is: 58,820.99
Step by Step Solution
- Step 1: Write the proportion equation
74,484.28 : 102,759.06 = 42,636.04 : x - Step 2: Convert to fraction form
74,484.28/102,759.06 = 42,636.04/x - Step 3: Cross multiply
74,484.28x = 102,759.06 × 42,636.04 - Step 4: Simplify right side
74,484.28x = 4,381,239,392.52 - Step 5: Solve for x
x = 4,381,239,392.52/74,484.28 - Step 6: Final answer
x = 58,820.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.