Finding the Fourth Proportional to 98,730.50, 136,240.59 and 55,713.99
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Solution
The fourth proportional to 98,730.50, 136,240.59 and 55,713.99 is: 76,881.07
Step by Step Solution
- Step 1: Write the proportion equation
98,730.50 : 136,240.59 = 55,713.99 : x - Step 2: Convert to fraction form
98,730.50/136,240.59 = 55,713.99/x - Step 3: Cross multiply
98,730.50x = 136,240.59 × 55,713.99 - Step 4: Simplify right side
98,730.50x = 7,590,506,750.46 - Step 5: Solve for x
x = 7,590,506,750.46/98,730.50 - Step 6: Final answer
x = 76,881.07
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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.