Finding the Fourth Proportional to 74,967.02, 103,387.53 and 62,199.99
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Solution
The fourth proportional to 74,967.02, 103,387.53 and 62,199.99 is: 85,780.43
Step by Step Solution
- Step 1: Write the proportion equation
74,967.02 : 103,387.53 = 62,199.99 : x - Step 2: Convert to fraction form
74,967.02/103,387.53 = 62,199.99/x - Step 3: Cross multiply
74,967.02x = 103,387.53 × 62,199.99 - Step 4: Simplify right side
74,967.02x = 6,430,703,200.73 - Step 5: Solve for x
x = 6,430,703,200.73/74,967.02 - Step 6: Final answer
x = 85,780.43
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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.