Finding the Fourth Proportional to 98,270.13, 135,617.58 and 55,263.15
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Solution
The fourth proportional to 98,270.13, 135,617.58 and 55,263.15 is: 76,265.85
Step by Step Solution
- Step 1: Write the proportion equation
98,270.13 : 135,617.58 = 55,263.15 : x - Step 2: Convert to fraction form
98,270.13/135,617.58 = 55,263.15/x - Step 3: Cross multiply
98,270.13x = 135,617.58 × 55,263.15 - Step 4: Simplify right side
98,270.13x = 7,494,654,666.18 - Step 5: Solve for x
x = 7,494,654,666.18/98,270.13 - Step 6: Final answer
x = 76,265.85
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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.