Finding the Fourth Proportional to 87,564.14, 120,838.40 and 51,767.06
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Solution
The fourth proportional to 87,564.14, 120,838.40 and 51,767.06 is: 71,438.48
Step by Step Solution
- Step 1: Write the proportion equation
87,564.14 : 120,838.40 = 51,767.06 : x - Step 2: Convert to fraction form
87,564.14/120,838.40 = 51,767.06/x - Step 3: Cross multiply
87,564.14x = 120,838.40 × 51,767.06 - Step 4: Simplify right side
87,564.14x = 6,255,448,703.10 - Step 5: Solve for x
x = 6,255,448,703.10/87,564.14 - Step 6: Final answer
x = 71,438.48
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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.