Finding the Fourth Proportional to 81,831.08, 112,925.82 and 46,021.08
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Solution
The fourth proportional to 81,831.08, 112,925.82 and 46,021.08 is: 63,508.49
Step by Step Solution
- Step 1: Write the proportion equation
81,831.08 : 112,925.82 = 46,021.08 : x - Step 2: Convert to fraction form
81,831.08/112,925.82 = 46,021.08/x - Step 3: Cross multiply
81,831.08x = 112,925.82 × 46,021.08 - Step 4: Simplify right side
81,831.08x = 5,196,968,196.29 - Step 5: Solve for x
x = 5,196,968,196.29/81,831.08 - Step 6: Final answer
x = 63,508.49
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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.