Finding the Fourth Proportional to 83,710.18, 115,477.14 and 53,463.70
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Solution
The fourth proportional to 83,710.18, 115,477.14 and 53,463.70 is: 73,752.50
Step by Step Solution
- Step 1: Write the proportion equation
83,710.18 : 115,477.14 = 53,463.70 : x - Step 2: Convert to fraction form
83,710.18/115,477.14 = 53,463.70/x - Step 3: Cross multiply
83,710.18x = 115,477.14 × 53,463.70 - Step 4: Simplify right side
83,710.18x = 6,173,835,169.82 - Step 5: Solve for x
x = 6,173,835,169.82/83,710.18 - Step 6: Final answer
x = 73,752.50
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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.