Finding the Fourth Proportional to 98,539.52, 135,984.69 and 56,098.08
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Solution
The fourth proportional to 98,539.52, 135,984.69 and 56,098.08 is: 77,415.44
Step by Step Solution
- Step 1: Write the proportion equation
98,539.52 : 135,984.69 = 56,098.08 : x - Step 2: Convert to fraction form
98,539.52/135,984.69 = 56,098.08/x - Step 3: Cross multiply
98,539.52x = 135,984.69 × 56,098.08 - Step 4: Simplify right side
98,539.52x = 7,628,480,018.40 - Step 5: Solve for x
x = 7,628,480,018.40/98,539.52 - Step 6: Final answer
x = 77,415.44
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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.