Finding the Fourth Proportional to 85,143.74, 117,502.01 and 47,417.99
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Solution
The fourth proportional to 85,143.74, 117,502.01 and 47,417.99 is: 65,438.86
Step by Step Solution
- Step 1: Write the proportion equation
85,143.74 : 117,502.01 = 47,417.99 : x - Step 2: Convert to fraction form
85,143.74/117,502.01 = 47,417.99/x - Step 3: Cross multiply
85,143.74x = 117,502.01 × 47,417.99 - Step 4: Simplify right side
85,143.74x = 5,571,708,957.34 - Step 5: Solve for x
x = 5,571,708,957.34/85,143.74 - Step 6: Final answer
x = 65,438.86
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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.