Finding the Fourth Proportional to 76,794.06, 105,962.95 and 42,795.09
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Solution
The fourth proportional to 76,794.06, 105,962.95 and 42,795.09 is: 59,050.06
Step by Step Solution
- Step 1: Write the proportion equation
76,794.06 : 105,962.95 = 42,795.09 : x - Step 2: Convert to fraction form
76,794.06/105,962.95 = 42,795.09/x - Step 3: Cross multiply
76,794.06x = 105,962.95 × 42,795.09 - Step 4: Simplify right side
76,794.06x = 4,534,693,981.92 - Step 5: Solve for x
x = 4,534,693,981.92/76,794.06 - Step 6: Final answer
x = 59,050.06
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1.5x scale
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.