Finding the Fourth Proportional to 77,497.08, 106,918.44 and 50,655.06
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Solution
The fourth proportional to 77,497.08, 106,918.44 and 50,655.06 is: 69,885.99
Step by Step Solution
- Step 1: Write the proportion equation
77,497.08 : 106,918.44 = 50,655.06 : x - Step 2: Convert to fraction form
77,497.08/106,918.44 = 50,655.06/x - Step 3: Cross multiply
77,497.08x = 106,918.44 × 50,655.06 - Step 4: Simplify right side
77,497.08x = 5,415,959,993.31 - Step 5: Solve for x
x = 5,415,959,993.31/77,497.08 - Step 6: Final answer
x = 69,885.99
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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.