Finding the Fourth Proportional to 74,199.23, 102,393.15 and 40,206.26
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Solution
The fourth proportional to 74,199.23, 102,393.15 and 40,206.26 is: 55,483.67
Step by Step Solution
- Step 1: Write the proportion equation
74,199.23 : 102,393.15 = 40,206.26 : x - Step 2: Convert to fraction form
74,199.23/102,393.15 = 40,206.26/x - Step 3: Cross multiply
74,199.23x = 102,393.15 × 40,206.26 - Step 4: Simplify right side
74,199.23x = 4,116,845,099.15 - Step 5: Solve for x
x = 4,116,845,099.15/74,199.23 - Step 6: Final answer
x = 55,483.67
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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.