Finding the Fourth Proportional to 86,280.84, 129,412.71 and 27,114.93
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Solution
The fourth proportional to 86,280.84, 129,412.71 and 27,114.93 is: 40,669.71
Step by Step Solution
- Step 1: Write the proportion equation
86,280.84 : 129,412.71 = 27,114.93 : x - Step 2: Convert to fraction form
86,280.84/129,412.71 = 27,114.93/x - Step 3: Cross multiply
86,280.84x = 129,412.71 × 27,114.93 - Step 4: Simplify right side
86,280.84x = 3,509,016,572.76 - Step 5: Solve for x
x = 3,509,016,572.76/86,280.84 - Step 6: Final answer
x = 40,669.71
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.