Finding the Fourth Proportional to 93,721.80, 129,337.02 and 51,282.12
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Solution
The fourth proportional to 93,721.80, 129,337.02 and 51,282.12 is: 70,769.84
Step by Step Solution
- Step 1: Write the proportion equation
93,721.80 : 129,337.02 = 51,282.12 : x - Step 2: Convert to fraction form
93,721.80/129,337.02 = 51,282.12/x - Step 3: Cross multiply
93,721.80x = 129,337.02 × 51,282.12 - Step 4: Simplify right side
93,721.80x = 6,632,676,580.08 - Step 5: Solve for x
x = 6,632,676,580.08/93,721.80 - Step 6: Final answer
x = 70,769.84
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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.