Finding the Fourth Proportional to 98,513.74, 135,954.21 and 56,085.94
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Solution
The fourth proportional to 98,513.74, 135,954.21 and 56,085.94 is: 77,401.59
Step by Step Solution
- Step 1: Write the proportion equation
98,513.74 : 135,954.21 = 56,085.94 : x - Step 2: Convert to fraction form
98,513.74/135,954.21 = 56,085.94/x - Step 3: Cross multiply
98,513.74x = 135,954.21 × 56,085.94 - Step 4: Simplify right side
98,513.74x = 7,625,119,664.81 - Step 5: Solve for x
x = 7,625,119,664.81/98,513.74 - Step 6: Final answer
x = 77,401.59
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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.