Finding the Fourth Proportional to 83,743.40, 125,600.70 and 31,125.80
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Solution
The fourth proportional to 83,743.40, 125,600.70 and 31,125.80 is: 46,683.35
Step by Step Solution
- Step 1: Write the proportion equation
83,743.40 : 125,600.70 = 31,125.80 : x - Step 2: Convert to fraction form
83,743.40/125,600.70 = 31,125.80/x - Step 3: Cross multiply
83,743.40x = 125,600.70 × 31,125.80 - Step 4: Simplify right side
83,743.40x = 3,909,422,268.06 - Step 5: Solve for x
x = 3,909,422,268.06/83,743.40 - Step 6: Final answer
x = 46,683.35
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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.