Finding the Fourth Proportional to 101,040.56, 139,437.47 and 55,718.63
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Solution
The fourth proportional to 101,040.56, 139,437.47 and 55,718.63 is: 76,892.53
Step by Step Solution
- Step 1: Write the proportion equation
101,040.56 : 139,437.47 = 55,718.63 : x - Step 2: Convert to fraction form
101,040.56/139,437.47 = 55,718.63/x - Step 3: Cross multiply
101,040.56x = 139,437.47 × 55,718.63 - Step 4: Simplify right side
101,040.56x = 7,769,264,241.18 - Step 5: Solve for x
x = 7,769,264,241.18/101,040.56 - Step 6: Final answer
x = 76,892.53
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1.5x scale
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.