Finding the Fourth Proportional to 97,780.80, 134,937.56 and 53,068.80
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Solution
The fourth proportional to 97,780.80, 134,937.56 and 53,068.80 is: 73,234.97
Step by Step Solution
- Step 1: Write the proportion equation
97,780.80 : 134,937.56 = 53,068.80 : x - Step 2: Convert to fraction form
97,780.80/134,937.56 = 53,068.80/x - Step 3: Cross multiply
97,780.80x = 134,937.56 × 53,068.80 - Step 4: Simplify right side
97,780.80x = 7,160,974,384.13 - Step 5: Solve for x
x = 7,160,974,384.13/97,780.80 - Step 6: Final answer
x = 73,234.97
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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.