Finding the Fourth Proportional to 99,780.08, 149,746.26 and 36,660.02
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Solution
The fourth proportional to 99,780.08, 149,746.26 and 36,660.02 is: 55,018.00
Step by Step Solution
- Step 1: Write the proportion equation
99,780.08 : 149,746.26 = 36,660.02 : x - Step 2: Convert to fraction form
99,780.08/149,746.26 = 36,660.02/x - Step 3: Cross multiply
99,780.08x = 149,746.26 × 36,660.02 - Step 4: Simplify right side
99,780.08x = 5,489,700,886.53 - Step 5: Solve for x
x = 5,489,700,886.53/99,780.08 - Step 6: Final answer
x = 55,018.00
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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.