Finding the Fourth Proportional to 74,334.95, 102,582.20 and 42,068.99
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Solution
The fourth proportional to 74,334.95, 102,582.20 and 42,068.99 is: 58,055.18
Step by Step Solution
- Step 1: Write the proportion equation
74,334.95 : 102,582.20 = 42,068.99 : x - Step 2: Convert to fraction form
74,334.95/102,582.20 = 42,068.99/x - Step 3: Cross multiply
74,334.95x = 102,582.20 × 42,068.99 - Step 4: Simplify right side
74,334.95x = 4,315,528,822.72 - Step 5: Solve for x
x = 4,315,528,822.72/74,334.95 - Step 6: Final answer
x = 58,055.18
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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.