Finding the Fourth Proportional to 77,432.01, 106,864.26 and 43,449.66
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Solution
The fourth proportional to 77,432.01, 106,864.26 and 43,449.66 is: 59,965.07
Step by Step Solution
- Step 1: Write the proportion equation
77,432.01 : 106,864.26 = 43,449.66 : x - Step 2: Convert to fraction form
77,432.01/106,864.26 = 43,449.66/x - Step 3: Cross multiply
77,432.01x = 106,864.26 × 43,449.66 - Step 4: Simplify right side
77,432.01x = 4,643,215,763.15 - Step 5: Solve for x
x = 4,643,215,763.15/77,432.01 - Step 6: Final answer
x = 59,965.07
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1.5x scale
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.