Finding the Fourth Proportional to 93,271.23, 128,560.68 and 66,012.06
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Solution
The fourth proportional to 93,271.23, 128,560.68 and 66,012.06 is: 90,987.92
Step by Step Solution
- Step 1: Write the proportion equation
93,271.23 : 128,560.68 = 66,012.06 : x - Step 2: Convert to fraction form
93,271.23/128,560.68 = 66,012.06/x - Step 3: Cross multiply
93,271.23x = 128,560.68 × 66,012.06 - Step 4: Simplify right side
93,271.23x = 8,486,555,321.80 - Step 5: Solve for x
x = 8,486,555,321.80/93,271.23 - Step 6: Final answer
x = 90,987.92
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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.