Finding the Fourth Proportional to 98,838.24, 136,395.36 and 56,395.68
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Solution
The fourth proportional to 98,838.24, 136,395.36 and 56,395.68 is: 77,825.23
Step by Step Solution
- Step 1: Write the proportion equation
98,838.24 : 136,395.36 = 56,395.68 : x - Step 2: Convert to fraction form
98,838.24/136,395.36 = 56,395.68/x - Step 3: Cross multiply
98,838.24x = 136,395.36 × 56,395.68 - Step 4: Simplify right side
98,838.24x = 7,692,109,076.04 - Step 5: Solve for x
x = 7,692,109,076.04/98,838.24 - Step 6: Final answer
x = 77,825.23
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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.