Finding the Fourth Proportional to 74,539.04, 102,863.03 and 55,503.95
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Solution
The fourth proportional to 74,539.04, 102,863.03 and 55,503.95 is: 76,594.82
Step by Step Solution
- Step 1: Write the proportion equation
74,539.04 : 102,863.03 = 55,503.95 : x - Step 2: Convert to fraction form
74,539.04/102,863.03 = 55,503.95/x - Step 3: Cross multiply
74,539.04x = 102,863.03 × 55,503.95 - Step 4: Simplify right side
74,539.04x = 5,709,303,682.13 - Step 5: Solve for x
x = 5,709,303,682.13/74,539.04 - Step 6: Final answer
x = 76,594.82
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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.