Finding the Fourth Proportional to 76,267.99, 105,187.43 and 53,681.75
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Solution
The fourth proportional to 76,267.99, 105,187.43 and 53,681.75 is: 74,036.89
Step by Step Solution
- Step 1: Write the proportion equation
76,267.99 : 105,187.43 = 53,681.75 : x - Step 2: Convert to fraction form
76,267.99/105,187.43 = 53,681.75/x - Step 3: Cross multiply
76,267.99x = 105,187.43 × 53,681.75 - Step 4: Simplify right side
76,267.99x = 5,646,644,526.06 - Step 5: Solve for x
x = 5,646,644,526.06/76,267.99 - Step 6: Final answer
x = 74,036.89
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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.