Finding the Fourth Proportional to 98,113.68, 135,393.12 and 55,669.68
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Solution
The fourth proportional to 98,113.68, 135,393.12 and 55,669.68 is: 76,822.03
Step by Step Solution
- Step 1: Write the proportion equation
98,113.68 : 135,393.12 = 55,669.68 : x - Step 2: Convert to fraction form
98,113.68/135,393.12 = 55,669.68/x - Step 3: Cross multiply
98,113.68x = 135,393.12 × 55,669.68 - Step 4: Simplify right side
98,113.68x = 7,537,291,664.60 - Step 5: Solve for x
x = 7,537,291,664.60/98,113.68 - Step 6: Final answer
x = 76,822.03
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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.