Finding the Fourth Proportional to 84,008.70, 115,931.97 and 46,282.95
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Solution
The fourth proportional to 84,008.70, 115,931.97 and 46,282.95 is: 63,870.45
Step by Step Solution
- Step 1: Write the proportion equation
84,008.70 : 115,931.97 = 46,282.95 : x - Step 2: Convert to fraction form
84,008.70/115,931.97 = 46,282.95/x - Step 3: Cross multiply
84,008.70x = 115,931.97 × 46,282.95 - Step 4: Simplify right side
84,008.70x = 5,365,673,570.91 - Step 5: Solve for x
x = 5,365,673,570.91/84,008.70 - Step 6: Final answer
x = 63,870.45
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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.