Finding the Fourth Proportional to 93,984, 140,976 and 28,320
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Solution
The fourth proportional to 93,984, 140,976 and 28,320 is: 42,480
Step by Step Solution
- Step 1: Write the proportion equation
93,984 : 140,976 = 28,320 : x - Step 2: Convert to fraction form
93,984/140,976 = 28,320/x - Step 3: Cross multiply
93,984x = 140,976 × 28,320 - Step 4: Simplify right side
93,984x = 3,992,440,320 - Step 5: Solve for x
x = 3,992,440,320/93,984 - Step 6: Final answer
x = 42,480
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.