Finding the Fourth Proportional to 88,029.08, 121,479.78 and 47,742.68
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Solution
The fourth proportional to 88,029.08, 121,479.78 and 47,742.68 is: 65,884.71
Step by Step Solution
- Step 1: Write the proportion equation
88,029.08 : 121,479.78 = 47,742.68 : x - Step 2: Convert to fraction form
88,029.08/121,479.78 = 47,742.68/x - Step 3: Cross multiply
88,029.08x = 121,479.78 × 47,742.68 - Step 4: Simplify right side
88,029.08x = 5,799,770,263.01 - Step 5: Solve for x
x = 5,799,770,263.01/88,029.08 - Step 6: Final answer
x = 65,884.71
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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.