Finding the Fourth Proportional to 85,659.49, 118,263.70 and 55,044.98
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Solution
The fourth proportional to 85,659.49, 118,263.70 and 55,044.98 is: 75,996.52
Step by Step Solution
- Step 1: Write the proportion equation
85,659.49 : 118,263.70 = 55,044.98 : x - Step 2: Convert to fraction form
85,659.49/118,263.70 = 55,044.98/x - Step 3: Cross multiply
85,659.49x = 118,263.70 × 55,044.98 - Step 4: Simplify right side
85,659.49x = 6,509,823,001.23 - Step 5: Solve for x
x = 6,509,823,001.23/85,659.49 - Step 6: Final answer
x = 75,996.52
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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.