Finding the Fourth Proportional to 93,432.96, 128,936.16 and 50,991.84
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Solution
The fourth proportional to 93,432.96, 128,936.16 and 50,991.84 is: 70,368.02
Step by Step Solution
- Step 1: Write the proportion equation
93,432.96 : 128,936.16 = 50,991.84 : x - Step 2: Convert to fraction form
93,432.96/128,936.16 = 50,991.84/x - Step 3: Cross multiply
93,432.96x = 128,936.16 × 50,991.84 - Step 4: Simplify right side
93,432.96x = 6,574,692,040.93 - Step 5: Solve for x
x = 6,574,692,040.93/93,432.96 - Step 6: Final answer
x = 70,368.02
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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.