Finding the Fourth Proportional to 74,285.74, 111,461.46 and 29,998.99
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Solution
The fourth proportional to 74,285.74, 111,461.46 and 29,998.99 is: 45,011.75
Step by Step Solution
- Step 1: Write the proportion equation
74,285.74 : 111,461.46 = 29,998.99 : x - Step 2: Convert to fraction form
74,285.74/111,461.46 = 29,998.99/x - Step 3: Cross multiply
74,285.74x = 111,461.46 × 29,998.99 - Step 4: Simplify right side
74,285.74x = 3,343,731,223.93 - Step 5: Solve for x
x = 3,343,731,223.93/74,285.74 - Step 6: Final answer
x = 45,011.75
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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.