Finding the Fourth Proportional to 75,763.12, 113,714.79 and 38,349.48
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Solution
The fourth proportional to 75,763.12, 113,714.79 and 38,349.48 is: 57,559.71
Step by Step Solution
- Step 1: Write the proportion equation
75,763.12 : 113,714.79 = 38,349.48 : x - Step 2: Convert to fraction form
75,763.12/113,714.79 = 38,349.48/x - Step 3: Cross multiply
75,763.12x = 113,714.79 × 38,349.48 - Step 4: Simplify right side
75,763.12x = 4,360,903,064.81 - Step 5: Solve for x
x = 4,360,903,064.81/75,763.12 - Step 6: Final answer
x = 57,559.71
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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.