Finding the Fourth Proportional to 98,470.53, 135,889.89 and 56,029.07
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Solution
The fourth proportional to 98,470.53, 135,889.89 and 56,029.07 is: 77,320.43
Step by Step Solution
- Step 1: Write the proportion equation
98,470.53 : 135,889.89 = 56,029.07 : x - Step 2: Convert to fraction form
98,470.53/135,889.89 = 56,029.07/x - Step 3: Cross multiply
98,470.53x = 135,889.89 × 56,029.07 - Step 4: Simplify right side
98,470.53x = 7,613,784,159.10 - Step 5: Solve for x
x = 7,613,784,159.10/98,470.53 - Step 6: Final answer
x = 77,320.43
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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.