Finding the Fourth Proportional to 85,594.77, 128,394.99 and 29,434.32
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Solution
The fourth proportional to 85,594.77, 128,394.99 and 29,434.32 is: 44,152.45
Step by Step Solution
- Step 1: Write the proportion equation
85,594.77 : 128,394.99 = 29,434.32 : x - Step 2: Convert to fraction form
85,594.77/128,394.99 = 29,434.32/x - Step 3: Cross multiply
85,594.77x = 128,394.99 × 29,434.32 - Step 4: Simplify right side
85,594.77x = 3,779,219,222.06 - Step 5: Solve for x
x = 3,779,219,222.06/85,594.77 - Step 6: Final answer
x = 44,152.45
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Double scale
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Similar ratio
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1.5x scale
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.