Finding the Fourth Proportional to 83,698.04, 115,538.64 and 56,510.96
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Solution
The fourth proportional to 83,698.04, 115,538.64 and 56,510.96 is: 78,008.99
Step by Step Solution
- Step 1: Write the proportion equation
83,698.04 : 115,538.64 = 56,510.96 : x - Step 2: Convert to fraction form
83,698.04/115,538.64 = 56,510.96/x - Step 3: Cross multiply
83,698.04x = 115,538.64 × 56,510.96 - Step 4: Simplify right side
83,698.04x = 6,529,199,463.49 - Step 5: Solve for x
x = 6,529,199,463.49/83,698.04 - Step 6: Final answer
x = 78,008.99
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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.