Finding the Fourth Proportional to 74,338.95, 102,587.87 and 40,347.44
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Solution
The fourth proportional to 74,338.95, 102,587.87 and 40,347.44 is: 55,679.52
Step by Step Solution
- Step 1: Write the proportion equation
74,338.95 : 102,587.87 = 40,347.44 : x - Step 2: Convert to fraction form
74,338.95/102,587.87 = 40,347.44/x - Step 3: Cross multiply
74,338.95x = 102,587.87 × 40,347.44 - Step 4: Simplify right side
74,338.95x = 4,139,157,214.88 - Step 5: Solve for x
x = 4,139,157,214.88/74,338.95 - Step 6: Final answer
x = 55,679.52
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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.