Finding the Fourth Proportional to 74,263.22, 102,480.39 and 40,271.09
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Solution
The fourth proportional to 74,263.22, 102,480.39 and 40,271.09 is: 55,572.55
Step by Step Solution
- Step 1: Write the proportion equation
74,263.22 : 102,480.39 = 40,271.09 : x - Step 2: Convert to fraction form
74,263.22/102,480.39 = 40,271.09/x - Step 3: Cross multiply
74,263.22x = 102,480.39 × 40,271.09 - Step 4: Simplify right side
74,263.22x = 4,126,996,496.52 - Step 5: Solve for x
x = 4,126,996,496.52/74,263.22 - Step 6: Final answer
x = 55,572.55
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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.