Finding the Fourth Proportional to 77,688.00, 107,212.65 and 43,698.08
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Solution
The fourth proportional to 77,688.00, 107,212.65 and 43,698.08 is: 60,305.14
Step by Step Solution
- Step 1: Write the proportion equation
77,688.00 : 107,212.65 = 43,698.08 : x - Step 2: Convert to fraction form
77,688.00/107,212.65 = 43,698.08/x - Step 3: Cross multiply
77,688.00x = 107,212.65 × 43,698.08 - Step 4: Simplify right side
77,688.00x = 4,684,986,256.78 - Step 5: Solve for x
x = 4,684,986,256.78/77,688.00 - Step 6: Final answer
x = 60,305.14
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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.