Finding the Fourth Proportional to 86,539.24, 119,443.38 and 56,271.88
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Solution
The fourth proportional to 86,539.24, 119,443.38 and 56,271.88 is: 77,667.70
Step by Step Solution
- Step 1: Write the proportion equation
86,539.24 : 119,443.38 = 56,271.88 : x - Step 2: Convert to fraction form
86,539.24/119,443.38 = 56,271.88/x - Step 3: Cross multiply
86,539.24x = 119,443.38 × 56,271.88 - Step 4: Simplify right side
86,539.24x = 6,721,303,546.15 - Step 5: Solve for x
x = 6,721,303,546.15/86,539.24 - Step 6: Final answer
x = 77,667.70
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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.