Finding the Fourth Proportional to 98,318.14, 135,646.95 and 58,018.30
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Solution
The fourth proportional to 98,318.14, 135,646.95 and 58,018.30 is: 80,046.32
Step by Step Solution
- Step 1: Write the proportion equation
98,318.14 : 135,646.95 = 58,018.30 : x - Step 2: Convert to fraction form
98,318.14/135,646.95 = 58,018.30/x - Step 3: Cross multiply
98,318.14x = 135,646.95 × 58,018.30 - Step 4: Simplify right side
98,318.14x = 7,870,005,439.19 - Step 5: Solve for x
x = 7,870,005,439.19/98,318.14 - Step 6: Final answer
x = 80,046.32
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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.