Finding the Fourth Proportional to 74,282.10, 102,508.98 and 40,290.45
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Solution
The fourth proportional to 74,282.10, 102,508.98 and 40,290.45 is: 55,600.65
Step by Step Solution
- Step 1: Write the proportion equation
74,282.10 : 102,508.98 = 40,290.45 : x - Step 2: Convert to fraction form
74,282.10/102,508.98 = 40,290.45/x - Step 3: Cross multiply
74,282.10x = 102,508.98 × 40,290.45 - Step 4: Simplify right side
74,282.10x = 4,130,132,933.24 - Step 5: Solve for x
x = 4,130,132,933.24/74,282.10 - Step 6: Final answer
x = 55,600.65
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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.