Finding the Fourth Proportional to 87,726.62, 121,055.36 and 51,910.40
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Solution
The fourth proportional to 87,726.62, 121,055.36 and 51,910.40 is: 71,631.99
Step by Step Solution
- Step 1: Write the proportion equation
87,726.62 : 121,055.36 = 51,910.40 : x - Step 2: Convert to fraction form
87,726.62/121,055.36 = 51,910.40/x - Step 3: Cross multiply
87,726.62x = 121,055.36 × 51,910.40 - Step 4: Simplify right side
87,726.62x = 6,284,032,159.74 - Step 5: Solve for x
x = 6,284,032,159.74/87,726.62 - Step 6: Final answer
x = 71,631.99
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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.