Finding the Fourth Proportional to 81,404.01, 112,340.99 and 47,407.02
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Solution
The fourth proportional to 81,404.01, 112,340.99 and 47,407.02 is: 65,423.70
Step by Step Solution
- Step 1: Write the proportion equation
81,404.01 : 112,340.99 = 47,407.02 : x - Step 2: Convert to fraction form
81,404.01/112,340.99 = 47,407.02/x - Step 3: Cross multiply
81,404.01x = 112,340.99 × 47,407.02 - Step 4: Simplify right side
81,404.01x = 5,325,751,688.91 - Step 5: Solve for x
x = 5,325,751,688.91/81,404.01 - Step 6: Final answer
x = 65,423.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.