Finding the Fourth Proportional to 86,627.99, 129,708.36 and 56,567.77
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Solution
The fourth proportional to 86,627.99, 129,708.36 and 56,567.77 is: 84,699.09
Step by Step Solution
- Step 1: Write the proportion equation
86,627.99 : 129,708.36 = 56,567.77 : x - Step 2: Convert to fraction form
86,627.99/129,708.36 = 56,567.77/x - Step 3: Cross multiply
86,627.99x = 129,708.36 × 56,567.77 - Step 4: Simplify right side
86,627.99x = 7,337,312,351.29 - Step 5: Solve for x
x = 7,337,312,351.29/86,627.99 - Step 6: Final answer
x = 84,699.09
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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.