Finding the Fourth Proportional to 76,831.76, 115,246.48 and 46,854.80
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Solution
The fourth proportional to 76,831.76, 115,246.48 and 46,854.80 is: 70,281.49
Step by Step Solution
- Step 1: Write the proportion equation
76,831.76 : 115,246.48 = 46,854.80 : x - Step 2: Convert to fraction form
76,831.76/115,246.48 = 46,854.80/x - Step 3: Cross multiply
76,831.76x = 115,246.48 × 46,854.80 - Step 4: Simplify right side
76,831.76x = 5,399,850,771.10 - Step 5: Solve for x
x = 5,399,850,771.10/76,831.76 - Step 6: Final answer
x = 70,281.49
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1.5x scale
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.