Finding the Fourth Proportional to 77,246.99, 115,886.75 and 26,650.61
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Solution
The fourth proportional to 77,246.99, 115,886.75 and 26,650.61 is: 39,981.52
Step by Step Solution
- Step 1: Write the proportion equation
77,246.99 : 115,886.75 = 26,650.61 : x - Step 2: Convert to fraction form
77,246.99/115,886.75 = 26,650.61/x - Step 3: Cross multiply
77,246.99x = 115,886.75 × 26,650.61 - Step 4: Simplify right side
77,246.99x = 3,088,451,865.73 - Step 5: Solve for x
x = 3,088,451,865.73/77,246.99 - Step 6: Final answer
x = 39,981.52
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1.5x scale
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.