Finding the Fourth Proportional to 74,040.41, 111,070.31 and 38,981.99
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Solution
The fourth proportional to 74,040.41, 111,070.31 and 38,981.99 is: 58,478.08
Step by Step Solution
- Step 1: Write the proportion equation
74,040.41 : 111,070.31 = 38,981.99 : x - Step 2: Convert to fraction form
74,040.41/111,070.31 = 38,981.99/x - Step 3: Cross multiply
74,040.41x = 111,070.31 × 38,981.99 - Step 4: Simplify right side
74,040.41x = 4,329,740,963.46 - Step 5: Solve for x
x = 4,329,740,963.46/74,040.41 - Step 6: Final answer
x = 58,478.08
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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.