Finding the Fourth Proportional to 76,334.24, 105,338.40 and 42,798.08
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Solution
The fourth proportional to 76,334.24, 105,338.40 and 42,798.08 is: 59,059.75
Step by Step Solution
- Step 1: Write the proportion equation
76,334.24 : 105,338.40 = 42,798.08 : x - Step 2: Convert to fraction form
76,334.24/105,338.40 = 42,798.08/x - Step 3: Cross multiply
76,334.24x = 105,338.40 × 42,798.08 - Step 4: Simplify right side
76,334.24x = 4,508,281,270.27 - Step 5: Solve for x
x = 4,508,281,270.27/76,334.24 - Step 6: Final answer
x = 59,059.75
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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.