Finding the Fourth Proportional to 92,237.40, 127,287.86 and 53,990
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Solution
The fourth proportional to 92,237.40, 127,287.86 and 53,990 is: 74,506.35
Step by Step Solution
- Step 1: Write the proportion equation
92,237.40 : 127,287.86 = 53,990 : x - Step 2: Convert to fraction form
92,237.40/127,287.86 = 53,990/x - Step 3: Cross multiply
92,237.40x = 127,287.86 × 53,990 - Step 4: Simplify right side
92,237.40x = 6,872,271,561.40 - Step 5: Solve for x
x = 6,872,271,561.40/92,237.40 - Step 6: Final answer
x = 74,506.35
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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.