Finding the Fourth Proportional to 86,265.08, 129,317.93 and 46,312.19
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Solution
The fourth proportional to 86,265.08, 129,317.93 and 46,312.19 is: 69,425.49
Step by Step Solution
- Step 1: Write the proportion equation
86,265.08 : 129,317.93 = 46,312.19 : x - Step 2: Convert to fraction form
86,265.08/129,317.93 = 46,312.19/x - Step 3: Cross multiply
86,265.08x = 129,317.93 × 46,312.19 - Step 4: Simplify right side
86,265.08x = 5,988,995,666.42 - Step 5: Solve for x
x = 5,988,995,666.42/86,265.08 - Step 6: Final answer
x = 69,425.49
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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.