Finding the Fourth Proportional to 77,233.80, 115,850.70 and 61,681.80
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Solution
The fourth proportional to 77,233.80, 115,850.70 and 61,681.80 is: 92,522.70
Step by Step Solution
- Step 1: Write the proportion equation
77,233.80 : 115,850.70 = 61,681.80 : x - Step 2: Convert to fraction form
77,233.80/115,850.70 = 61,681.80/x - Step 3: Cross multiply
77,233.80x = 115,850.70 × 61,681.80 - Step 4: Simplify right side
77,233.80x = 7,145,879,707.26 - Step 5: Solve for x
x = 7,145,879,707.26/77,233.80 - Step 6: Final answer
x = 92,522.70
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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.