Finding the Fourth Proportional to 90,726.24, 125,039.58 and 73,786.68
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Solution
The fourth proportional to 90,726.24, 125,039.58 and 73,786.68 is: 101,693.35
Step by Step Solution
- Step 1: Write the proportion equation
90,726.24 : 125,039.58 = 73,786.68 : x - Step 2: Convert to fraction form
90,726.24/125,039.58 = 73,786.68/x - Step 3: Cross multiply
90,726.24x = 125,039.58 × 73,786.68 - Step 4: Simplify right side
90,726.24x = 9,226,255,476.79 - Step 5: Solve for x
x = 9,226,255,476.79/90,726.24 - Step 6: Final answer
x = 101,693.35
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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.