Finding the Fourth Proportional to 74,119.07, 102,283.59 and 40,126.68
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Solution
The fourth proportional to 74,119.07, 102,283.59 and 40,126.68 is: 55,374.43
Step by Step Solution
- Step 1: Write the proportion equation
74,119.07 : 102,283.59 = 40,126.68 : x - Step 2: Convert to fraction form
74,119.07/102,283.59 = 40,126.68/x - Step 3: Cross multiply
74,119.07x = 102,283.59 × 40,126.68 - Step 4: Simplify right side
74,119.07x = 4,104,300,885.18 - Step 5: Solve for x
x = 4,104,300,885.18/74,119.07 - Step 6: Final answer
x = 55,374.43
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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.