Finding the Fourth Proportional to 90,234.98, 135,305.74 and 48,103.74
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Solution
The fourth proportional to 90,234.98, 135,305.74 and 48,103.74 is: 72,130.70
Step by Step Solution
- Step 1: Write the proportion equation
90,234.98 : 135,305.74 = 48,103.74 : x - Step 2: Convert to fraction form
90,234.98/135,305.74 = 48,103.74/x - Step 3: Cross multiply
90,234.98x = 135,305.74 × 48,103.74 - Step 4: Simplify right side
90,234.98x = 6,508,712,451.30 - Step 5: Solve for x
x = 6,508,712,451.30/90,234.98 - Step 6: Final answer
x = 72,130.70
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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.