Finding the Fourth Proportional to 67,988.68, 101,801.58 and 39,885.64
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Solution
The fourth proportional to 67,988.68, 101,801.58 and 39,885.64 is: 59,722.02
Step by Step Solution
- Step 1: Write the proportion equation
67,988.68 : 101,801.58 = 39,885.64 : x - Step 2: Convert to fraction form
67,988.68/101,801.58 = 39,885.64/x - Step 3: Cross multiply
67,988.68x = 101,801.58 × 39,885.64 - Step 4: Simplify right side
67,988.68x = 4,060,421,171.31 - Step 5: Solve for x
x = 4,060,421,171.31/67,988.68 - Step 6: Final answer
x = 59,722.02
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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.