Finding the Fourth Proportional to 76,799.68, 106,013.28 and 60,038.08
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Solution
The fourth proportional to 76,799.68, 106,013.28 and 60,038.08 is: 82,875.79
Step by Step Solution
- Step 1: Write the proportion equation
76,799.68 : 106,013.28 = 60,038.08 : x - Step 2: Convert to fraction form
76,799.68/106,013.28 = 60,038.08/x - Step 3: Cross multiply
76,799.68x = 106,013.28 × 60,038.08 - Step 4: Simplify right side
76,799.68x = 6,364,833,785.70 - Step 5: Solve for x
x = 6,364,833,785.70/76,799.68 - Step 6: Final answer
x = 82,875.79
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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.