Finding the Fourth Proportional to 85,648.64, 128,466.48 and 26,484.68
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Solution
The fourth proportional to 85,648.64, 128,466.48 and 26,484.68 is: 39,725.02
Step by Step Solution
- Step 1: Write the proportion equation
85,648.64 : 128,466.48 = 26,484.68 : x - Step 2: Convert to fraction form
85,648.64/128,466.48 = 26,484.68/x - Step 3: Cross multiply
85,648.64x = 128,466.48 × 26,484.68 - Step 4: Simplify right side
85,648.64x = 3,402,393,613.53 - Step 5: Solve for x
x = 3,402,393,613.53/85,648.64 - Step 6: Final answer
x = 39,725.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.