Finding the Fourth Proportional to 85,501.17, 128,253.51 and 29,340.99
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Solution
The fourth proportional to 85,501.17, 128,253.51 and 29,340.99 is: 44,012.09
Step by Step Solution
- Step 1: Write the proportion equation
85,501.17 : 128,253.51 = 29,340.99 : x - Step 2: Convert to fraction form
85,501.17/128,253.51 = 29,340.99/x - Step 3: Cross multiply
85,501.17x = 128,253.51 × 29,340.99 - Step 4: Simplify right side
85,501.17x = 3,763,084,954.37 - Step 5: Solve for x
x = 3,763,084,954.37/85,501.17 - Step 6: Final answer
x = 44,012.09
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1.5x scale
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.