Finding the Fourth Proportional to 75,831.53, 113,750.19 and 19,670.18
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Solution
The fourth proportional to 75,831.53, 113,750.19 and 19,670.18 is: 29,506.02
Step by Step Solution
- Step 1: Write the proportion equation
75,831.53 : 113,750.19 = 19,670.18 : x - Step 2: Convert to fraction form
75,831.53/113,750.19 = 19,670.18/x - Step 3: Cross multiply
75,831.53x = 113,750.19 × 19,670.18 - Step 4: Simplify right side
75,831.53x = 2,237,486,143.58 - Step 5: Solve for x
x = 2,237,486,143.58/75,831.53 - Step 6: Final answer
x = 29,506.02
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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.