Finding the Fourth Proportional to 98,124.90, 135,441.36 and 57,851.70
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Solution
The fourth proportional to 98,124.90, 135,441.36 and 57,851.70 is: 79,852.44
Step by Step Solution
- Step 1: Write the proportion equation
98,124.90 : 135,441.36 = 57,851.70 : x - Step 2: Convert to fraction form
98,124.90/135,441.36 = 57,851.70/x - Step 3: Cross multiply
98,124.90x = 135,441.36 × 57,851.70 - Step 4: Simplify right side
98,124.90x = 7,835,512,926.31 - Step 5: Solve for x
x = 7,835,512,926.31/98,124.90 - Step 6: Final answer
x = 79,852.44
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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.