Finding the Fourth Proportional to 73,955.56, 102,058.50 and 40,421.80
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Solution
The fourth proportional to 73,955.56, 102,058.50 and 40,421.80 is: 55,781.99
Step by Step Solution
- Step 1: Write the proportion equation
73,955.56 : 102,058.50 = 40,421.80 : x - Step 2: Convert to fraction form
73,955.56/102,058.50 = 40,421.80/x - Step 3: Cross multiply
73,955.56x = 102,058.50 × 40,421.80 - Step 4: Simplify right side
73,955.56x = 4,125,388,275.30 - Step 5: Solve for x
x = 4,125,388,275.30/73,955.56 - Step 6: Final answer
x = 55,781.99
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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.