Finding the Fourth Proportional to 97,781.58, 134,938.53 and 53,069.58
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Solution
The fourth proportional to 97,781.58, 134,938.53 and 53,069.58 is: 73,235.99
Step by Step Solution
- Step 1: Write the proportion equation
97,781.58 : 134,938.53 = 53,069.58 : x - Step 2: Convert to fraction form
97,781.58/134,938.53 = 53,069.58/x - Step 3: Cross multiply
97,781.58x = 134,938.53 × 53,069.58 - Step 4: Simplify right side
97,781.58x = 7,161,131,112.92 - Step 5: Solve for x
x = 7,161,131,112.92/97,781.58 - Step 6: Final answer
x = 73,235.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.