Finding the Fourth Proportional to 79,703.48, 110,027.30 and 56,748.18
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Solution
The fourth proportional to 79,703.48, 110,027.30 and 56,748.18 is: 78,338.47
Step by Step Solution
- Step 1: Write the proportion equation
79,703.48 : 110,027.30 = 56,748.18 : x - Step 2: Convert to fraction form
79,703.48/110,027.30 = 56,748.18/x - Step 3: Cross multiply
79,703.48x = 110,027.30 × 56,748.18 - Step 4: Simplify right side
79,703.48x = 6,243,849,025.31 - Step 5: Solve for x
x = 6,243,849,025.31/79,703.48 - Step 6: Final answer
x = 78,338.47
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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.