Finding the Fourth Proportional to 86,888.90, 119,900.88 and 48,641.99
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Solution
The fourth proportional to 86,888.90, 119,900.88 and 48,641.99 is: 67,122.70
Step by Step Solution
- Step 1: Write the proportion equation
86,888.90 : 119,900.88 = 48,641.99 : x - Step 2: Convert to fraction form
86,888.90/119,900.88 = 48,641.99/x - Step 3: Cross multiply
86,888.90x = 119,900.88 × 48,641.99 - Step 4: Simplify right side
86,888.90x = 5,832,217,954.92 - Step 5: Solve for x
x = 5,832,217,954.92/86,888.90 - Step 6: Final answer
x = 67,122.70
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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.