Finding the Fourth Proportional to 93,963.91, 129,644.74 and 53,669.65
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Solution
The fourth proportional to 93,963.91, 129,644.74 and 53,669.65 is: 74,049.58
Step by Step Solution
- Step 1: Write the proportion equation
93,963.91 : 129,644.74 = 53,669.65 : x - Step 2: Convert to fraction form
93,963.91/129,644.74 = 53,669.65/x - Step 3: Cross multiply
93,963.91x = 129,644.74 × 53,669.65 - Step 4: Simplify right side
93,963.91x = 6,957,987,820.14 - Step 5: Solve for x
x = 6,957,987,820.14/93,963.91 - Step 6: Final answer
x = 74,049.58
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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.