Finding the Fourth Proportional to 75,549.15, 113,327.76 and 19,389.74
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Solution
The fourth proportional to 75,549.15, 113,327.76 and 19,389.74 is: 29,085.65
Step by Step Solution
- Step 1: Write the proportion equation
75,549.15 : 113,327.76 = 19,389.74 : x - Step 2: Convert to fraction form
75,549.15/113,327.76 = 19,389.74/x - Step 3: Cross multiply
75,549.15x = 113,327.76 × 19,389.74 - Step 4: Simplify right side
75,549.15x = 2,197,395,801.18 - Step 5: Solve for x
x = 2,197,395,801.18/75,549.15 - Step 6: Final answer
x = 29,085.65
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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.