Finding the Fourth Proportional to 77,726.31, 116,589.51 and 31,011.99
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Solution
The fourth proportional to 77,726.31, 116,589.51 and 31,011.99 is: 46,518.00
Step by Step Solution
- Step 1: Write the proportion equation
77,726.31 : 116,589.51 = 31,011.99 : x - Step 2: Convert to fraction form
77,726.31/116,589.51 = 31,011.99/x - Step 3: Cross multiply
77,726.31x = 116,589.51 × 31,011.99 - Step 4: Simplify right side
77,726.31x = 3,615,672,718.22 - Step 5: Solve for x
x = 3,615,672,718.22/77,726.31 - Step 6: Final answer
x = 46,518.00
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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.