Finding the Fourth Proportional to 98,098.60, 135,374.80 and 57,814.08
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Solution
The fourth proportional to 98,098.60, 135,374.80 and 57,814.08 is: 79,782.68
Step by Step Solution
- Step 1: Write the proportion equation
98,098.60 : 135,374.80 = 57,814.08 : x - Step 2: Convert to fraction form
98,098.60/135,374.80 = 57,814.08/x - Step 3: Cross multiply
98,098.60x = 135,374.80 × 57,814.08 - Step 4: Simplify right side
98,098.60x = 7,826,569,517.18 - Step 5: Solve for x
x = 7,826,569,517.18/98,098.60 - Step 6: Final answer
x = 79,782.68
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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.