Finding the Fourth Proportional to 97,909.50, 135,115.47 and 53,197.50
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Solution
The fourth proportional to 97,909.50, 135,115.47 and 53,197.50 is: 73,412.75
Step by Step Solution
- Step 1: Write the proportion equation
97,909.50 : 135,115.47 = 53,197.50 : x - Step 2: Convert to fraction form
97,909.50/135,115.47 = 53,197.50/x - Step 3: Cross multiply
97,909.50x = 135,115.47 × 53,197.50 - Step 4: Simplify right side
97,909.50x = 7,187,805,215.33 - Step 5: Solve for x
x = 7,187,805,215.33/97,909.50 - Step 6: Final answer
x = 73,412.75
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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.