Finding the Fourth Proportional to 74,733.84, 103,134.06 and 40,742.60
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Solution
The fourth proportional to 74,733.84, 103,134.06 and 40,742.60 is: 56,225.52
Step by Step Solution
- Step 1: Write the proportion equation
74,733.84 : 103,134.06 = 40,742.60 : x - Step 2: Convert to fraction form
74,733.84/103,134.06 = 40,742.60/x - Step 3: Cross multiply
74,733.84x = 103,134.06 × 40,742.60 - Step 4: Simplify right side
74,733.84x = 4,201,949,237.29 - Step 5: Solve for x
x = 4,201,949,237.29/74,733.84 - Step 6: Final answer
x = 56,225.52
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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.