Finding the Fourth Proportional to 98,130.95, 135,412.99 and 55,689.47
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Solution
The fourth proportional to 98,130.95, 135,412.99 and 55,689.47 is: 76,847.09
Step by Step Solution
- Step 1: Write the proportion equation
98,130.95 : 135,412.99 = 55,689.47 : x - Step 2: Convert to fraction form
98,130.95/135,412.99 = 55,689.47/x - Step 3: Cross multiply
98,130.95x = 135,412.99 × 55,689.47 - Step 4: Simplify right side
98,130.95x = 7,541,077,644.22 - Step 5: Solve for x
x = 7,541,077,644.22/98,130.95 - Step 6: Final answer
x = 76,847.09
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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.