Finding the Fourth Proportional to 77,459.12, 106,893.64 and 43,925.12
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Solution
The fourth proportional to 77,459.12, 106,893.64 and 43,925.12 is: 60,616.70
Step by Step Solution
- Step 1: Write the proportion equation
77,459.12 : 106,893.64 = 43,925.12 : x - Step 2: Convert to fraction form
77,459.12/106,893.64 = 43,925.12/x - Step 3: Cross multiply
77,459.12x = 106,893.64 × 43,925.12 - Step 4: Simplify right side
77,459.12x = 4,695,315,964.24 - Step 5: Solve for x
x = 4,695,315,964.24/77,459.12 - Step 6: Final answer
x = 60,616.70
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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.