Finding the Fourth Proportional to 93,830.63, 129,486.26 and 51,390.68
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Solution
The fourth proportional to 93,830.63, 129,486.26 and 51,390.68 is: 70,919.13
Step by Step Solution
- Step 1: Write the proportion equation
93,830.63 : 129,486.26 = 51,390.68 : x - Step 2: Convert to fraction form
93,830.63/129,486.26 = 51,390.68/x - Step 3: Cross multiply
93,830.63x = 129,486.26 × 51,390.68 - Step 4: Simplify right side
93,830.63x = 6,654,386,433.10 - Step 5: Solve for x
x = 6,654,386,433.10/93,830.63 - Step 6: Final answer
x = 70,919.13
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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.