Finding the Fourth Proportional to 77,020.81, 115,529.93 and 26,454.98
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Solution
The fourth proportional to 77,020.81, 115,529.93 and 26,454.98 is: 39,682.02
Step by Step Solution
- Step 1: Write the proportion equation
77,020.81 : 115,529.93 = 26,454.98 : x - Step 2: Convert to fraction form
77,020.81/115,529.93 = 26,454.98/x - Step 3: Cross multiply
77,020.81x = 115,529.93 × 26,454.98 - Step 4: Simplify right side
77,020.81x = 3,056,341,277.63 - Step 5: Solve for x
x = 3,056,341,277.63/77,020.81 - Step 6: Final answer
x = 39,682.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.