Finding the Fourth Proportional to 98,539.91, 135,985.23 and 56,098.44
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Solution
The fourth proportional to 98,539.91, 135,985.23 and 56,098.44 is: 77,415.94
Step by Step Solution
- Step 1: Write the proportion equation
98,539.91 : 135,985.23 = 56,098.44 : x - Step 2: Convert to fraction form
98,539.91/135,985.23 = 56,098.44/x - Step 3: Cross multiply
98,539.91x = 135,985.23 × 56,098.44 - Step 4: Simplify right side
98,539.91x = 7,628,559,266.04 - Step 5: Solve for x
x = 7,628,559,266.04/98,539.91 - Step 6: Final answer
x = 77,415.94
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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.