Finding the Fourth Proportional to 83,860.94, 125,813.28 and 31,270.88
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Solution
The fourth proportional to 83,860.94, 125,813.28 and 31,270.88 is: 46,914.47
Step by Step Solution
- Step 1: Write the proportion equation
83,860.94 : 125,813.28 = 31,270.88 : x - Step 2: Convert to fraction form
83,860.94/125,813.28 = 31,270.88/x - Step 3: Cross multiply
83,860.94x = 125,813.28 × 31,270.88 - Step 4: Simplify right side
83,860.94x = 3,934,291,352.22 - Step 5: Solve for x
x = 3,934,291,352.22/83,860.94 - Step 6: Final answer
x = 46,914.47
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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.