Finding the Fourth Proportional to 77,813.80, 116,720.70 and 62,261.80
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Solution
The fourth proportional to 77,813.80, 116,720.70 and 62,261.80 is: 93,392.70
Step by Step Solution
- Step 1: Write the proportion equation
77,813.80 : 116,720.70 = 62,261.80 : x - Step 2: Convert to fraction form
77,813.80/116,720.70 = 62,261.80/x - Step 3: Cross multiply
77,813.80x = 116,720.70 × 62,261.80 - Step 4: Simplify right side
77,813.80x = 7,267,240,879.26 - Step 5: Solve for x
x = 7,267,240,879.26/77,813.80 - Step 6: Final answer
x = 93,392.70
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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.