Finding the Fourth Proportional to 74,840.16, 112,237.92 and 61,659.84
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Solution
The fourth proportional to 74,840.16, 112,237.92 and 61,659.84 is: 92,471.37
Step by Step Solution
- Step 1: Write the proportion equation
74,840.16 : 112,237.92 = 61,659.84 : x - Step 2: Convert to fraction form
74,840.16/112,237.92 = 61,659.84/x - Step 3: Cross multiply
74,840.16x = 112,237.92 × 61,659.84 - Step 4: Simplify right side
74,840.16x = 6,920,572,189.13 - Step 5: Solve for x
x = 6,920,572,189.13/74,840.16 - Step 6: Final answer
x = 92,471.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.