Finding the Fourth Proportional to 88,307.71, 121,865.21 and 48,021.91
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Solution
The fourth proportional to 88,307.71, 121,865.21 and 48,021.91 is: 66,270.54
Step by Step Solution
- Step 1: Write the proportion equation
88,307.71 : 121,865.21 = 48,021.91 : x - Step 2: Convert to fraction form
88,307.71/121,865.21 = 48,021.91/x - Step 3: Cross multiply
88,307.71x = 121,865.21 × 48,021.91 - Step 4: Simplify right side
88,307.71x = 5,852,199,782.06 - Step 5: Solve for x
x = 5,852,199,782.06/88,307.71 - Step 6: Final answer
x = 66,270.54
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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.