Finding the Fourth Proportional to 79,705.10, 119,495.68 and 51,565.70
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Solution
The fourth proportional to 79,705.10, 119,495.68 and 51,565.70 is: 77,308.45
Step by Step Solution
- Step 1: Write the proportion equation
79,705.10 : 119,495.68 = 51,565.70 : x - Step 2: Convert to fraction form
79,705.10/119,495.68 = 51,565.70/x - Step 3: Cross multiply
79,705.10x = 119,495.68 × 51,565.70 - Step 4: Simplify right side
79,705.10x = 6,161,877,659.78 - Step 5: Solve for x
x = 6,161,877,659.78/79,705.10 - Step 6: Final answer
x = 77,308.45
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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.