Finding the Fourth Proportional to 101,006.41, 139,389.74 and 55,685.99
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Solution
The fourth proportional to 101,006.41, 139,389.74 and 55,685.99 is: 76,847.16
Step by Step Solution
- Step 1: Write the proportion equation
101,006.41 : 139,389.74 = 55,685.99 : x - Step 2: Convert to fraction form
101,006.41/139,389.74 = 55,685.99/x - Step 3: Cross multiply
101,006.41x = 139,389.74 × 55,685.99 - Step 4: Simplify right side
101,006.41x = 7,762,055,110.01 - Step 5: Solve for x
x = 7,762,055,110.01/101,006.41 - Step 6: Final answer
x = 76,847.16
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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.