Finding the Fourth Proportional to 76,678.02, 105,820.49 and 46,465.99
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Solution
The fourth proportional to 76,678.02, 105,820.49 and 46,465.99 is: 64,125.99
Step by Step Solution
- Step 1: Write the proportion equation
76,678.02 : 105,820.49 = 46,465.99 : x - Step 2: Convert to fraction form
76,678.02/105,820.49 = 46,465.99/x - Step 3: Cross multiply
76,678.02x = 105,820.49 × 46,465.99 - Step 4: Simplify right side
76,678.02x = 4,917,053,681.75 - Step 5: Solve for x
x = 4,917,053,681.75/76,678.02 - Step 6: Final answer
x = 64,125.99
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1.5x scale
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.