Finding the Fourth Proportional to 101,008.44, 139,392.62 and 55,688.08
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Solution
The fourth proportional to 101,008.44, 139,392.62 and 55,688.08 is: 76,850.09
Step by Step Solution
- Step 1: Write the proportion equation
101,008.44 : 139,392.62 = 55,688.08 : x - Step 2: Convert to fraction form
101,008.44/139,392.62 = 55,688.08/x - Step 3: Cross multiply
101,008.44x = 139,392.62 × 55,688.08 - Step 4: Simplify right side
101,008.44x = 7,762,507,373.97 - Step 5: Solve for x
x = 7,762,507,373.97/101,008.44 - Step 6: Final answer
x = 76,850.09
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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.