Finding the Fourth Proportional to 85,988.24, 128,934.99 and 46,054.02
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Solution
The fourth proportional to 85,988.24, 128,934.99 and 46,054.02 is: 69,055.66
Step by Step Solution
- Step 1: Write the proportion equation
85,988.24 : 128,934.99 = 46,054.02 : x - Step 2: Convert to fraction form
85,988.24/128,934.99 = 46,054.02/x - Step 3: Cross multiply
85,988.24x = 128,934.99 × 46,054.02 - Step 4: Simplify right side
85,988.24x = 5,937,974,608.16 - Step 5: Solve for x
x = 5,937,974,608.16/85,988.24 - Step 6: Final answer
x = 69,055.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.